university of parma gastroenterology and endoscopy unit ... · university of parma gastroenterology...
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Ecoendoscopy in children: an update on indications and clinical usefulness
University of Parma Gastroenterology and Endoscopy Unit
Chair: Prof G.L. de’ Angelis
Rome, 13th April 2013
PEDIATRIC GASTROINTESTINAL ENDOSCOPY
AND BEYOND
Barbara Bizzarri
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INSTRUMENTATIONS
Endoscopy is combined with ultrasound, by placing the US transducer on the tip of an endoscope, to obtain images of the
internal organs in the chest and abdomen. Electronic probes may be oriented radially or linearly
Echoendoscopes operate from 5 to 20 MHz, permitting a spectrum of depth of penetration and image resolution.
Miniprobes can be inserted inside the biopsy channel of a standard endoscope
ENDOSCOPIC ULTRASOUND Introduced in the early ‘80
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RADIAL EUS
Radial EUS scopes provide a 360 ° sonographic view, which is perpendicular to the tip of the endoscope.
Endoscopic view is frontal or side view
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LINEAR EUS
Linear EUS scopes provide a 150° sector view, which is parallel to the long axis of the endoscope.
Linear EUS can be used to perform fine needle aspiration (FNA) and other interventional
procedures, first introduced by Vilmann in 1992
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Fine Needle Aspiration All accessible EUS lesions which need to be cytologically defined, if no other easier or
accessible technique can be utilized Palazzo L 2003 Quelles sont les indications reconues de la ponction sous echoendoscopie? Acta endoscopica 1:17-29
Single use needle are inserted in
the biopsy channel and it has a 4-layer configuration:
d) a stylet to avoid perforation of the spiral and damage of the working channel.
a) a handle assembly for controlled advancement of the needle with a dedicated port for the needle stylet
and an attachment for a vacuum syringe;
b) a semi-rigid protective sheath
c) a hollow needle that may come in one or more size
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25G,the finest one, can be used to
perform FNA of highly vascularized
mass such as nodes, it is also preferred unless there are
reasons to use bigger needles
FNA needles are available in 19, 22 and 25 gage size
Diagnostic FNA are 22 or 25 gage sizes
19 G needle
Larger core histological needle are needed when
acquisition of pathological specimen is
required rather than cytological or
for therapetic procedure
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The EchoTip ProCore needles obtain intact tissue samples, allowing for a histological diagnosis
rather than conventional cytological diagnosis based on individual cells
It has a handle with a spring loaded shot mechanism to facilitate the
penetration of the needle into the lesion allowing more efficient tissue
samples to be obtained.
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FNA seems to be a safe and efficient procedure even in paediatric age, despite the use in paediatric population
remains limitated
.
Al Rashdan A et al Role of EUS for evaluating gastrointestinal tract disorders in pediatrics: a tertiary care center experience. JPGN2010;1(6):718-22
Enzymes Amylase
Lipase Tumor
Markers CEA
Ca 19-9
Cytology
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EUS anatomy from stomach
wirsung
wirsung
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EUS anatomy from duodenum
Common bile duct
Common bile duct
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Il libro bianco dell’endoscopista F. Cosentino, G. Battaglia, E. Ricci Caletti G, Togliani T, Fusaroli P, Jaboli MF Ecoendoscopia: tecnologia e razionale d’uso
Diagnostic EUS indications
Primary indications Tumoral GI wall staging,
local nodes FNA
Differntial diagosis for submucosal
lesions (FNA?)
Diagnosis and staging of bilio-
pancreatic tumors,
local nodes FNA
Dignosis of choledochal lithiasis
Staging of lung tumors,
local nodes FNA
Secondary indications
Portal Hypertension evaluation
Diagnosis of chronic pancreatitis
Diagnosis of ascites
Barrett’s esophagus evaluation?
Therapeutic EUS indications
Primary indications Drainage of pancreatic pseudocyst
Celiac plex neurolysys
Secondary indications
Pancreatic tumor ablation
Bilio-pancreatic anastomosis
Indications in adults
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INDICATIONS in CHILDREN
Upper digestive tract EUS was performed in
children suffering from biliopancreatic diseases, angiomatosis or digestive tumors
Anorectal EUS investigated tumors (adenomas and
carcinoid tumor) or proctological diseases
Roseau G, Palazzo L, Dumontier I et al. Endoscopic ultrasonography in the evaluation of pediatric digestive diseases: preliminary
results. Endoscopy 1998;30(5):477-81.
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Pancreatobiliary EUS:
pancreatitis, solid pancreatic mass, cystic pancreatic mass, cyst in the setting of chronic pancreatitis, suspected annularpancreas, celiac plexus block, suspected CBD stone, abdominal pain and atrophic pancreas, ampullary adenoma, abnormal MRCP in a patient with jaundice.
INDICATIONS:
GASTROINTESTINAL ENDOSCOPY 2009;70(5):892-8
Gastric EUS: mucosal lesions, subepithelial lesions
Other indications:
esophageal stricture, unexplained abdominal pain, unexplained abdominal pain with celiac axis block, perirectal fluid collection
Mediastinal EUS:
mediastinal masses/lymph nodes.
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INDICATIONS JPGN 2010;51: 718–722
Indications for EUS in children were similar to those for adults, but children have a
much lower incidence of neoplastic diseases.
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GASTROINTESTINAL ENDOSCOPY 2005;62(2)
JPGN 2011;52(4)
GASTROINTESTINAL ENDOSCOPY;2013
Disorders of the pancreatobiliary
system were the primary indication
PANCREAS
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Case Reports in Gastrointestinal Medicine 2012
Journal of Pediatric Surgery, 2002; 37(9):1370-1373
PANCREAS
Neoplastic disease
Case Reports in Gastrointestinal Medicine 2012
Endoscopy 2011; 43: E61–E62
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JPGN 2013;56: 30–35
Dig Dis Sci (2011) 56:902–908
Therapeutic EUS indications
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Infants and children (0–15 years) with typical symptoms of GERD persisting after a 14-days proton pump inhibitor trial were included in a prospective study protocol. Upper endoscopy and EUS of the esophageal wall were performed
Scandinavian Journal of Gastroenterology, 2010; 45: 1029–1035
Gastrointest Endosc. 2011 Jul;74(1):204-7.
ESOPHAGUS
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Journal of Pediatric Surgery (2011) 46,
STOMACH-DUODENUM
Transplantation 2008;86(10)
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RECTUM
GASTROINTESTINAL ENDOSCOPY 2012
Rosen MJ, Moulton DE, Koyama T et al.
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PERSONAL INDICATIONS in CHILDREN
upper EUS suspected choledocholithiasis,
abnormal biliary ductal system acute or recurrent pancreatitis
abdominal pain suggestive of pancreatobiliary origin
abdominal trauma
pancreatic cyst/mass
linfoma
lower EUS suspected anal fistula
follow-up after fistulectomy surgery
fecal incontinence
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CLINCAL USEFULNESS of EUS Pancreaticobiliary disorders
More than 60% of ERCPs done in children are diagnostic with a
complication rate of 2.5% to 11% EUS appears to be a logical
alternative
The diagnostic accuracy of EUS in the evaluation of PB disorders,
such as choledocholithiasis, chronic pancreatitis, and
pancreaticobiliary malignancies, exceeds 90% (95-100%).
Evaluation of pancreaticobiliary disorders is the most common
indication for EUS referrals in a pediatric population
(choledocholithiasis and idiopathic or recurrent pancreatitis).
Varadarajulu S, Wilcox M, Eloubeidi, M Impact of EUS in the evaluation of pancreaticobiliary disorders in children GASTROINTESTINAL ENDOSCOPY 2005;62 (2):239-244
Attila T, Adler D, Hilden K et al EUS in pediatric patients GASTROINTESTINAL ENDOSCOPY 2009;70 (5):892-8
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It precluded the need for ERCP in the majority (65%) of patients.
EUS supplanted ERCP in 84% of cases
EUS had an impact on patient management in 93% of cases:
established new diagnosis, precluded need for ERCP,
provided additional information that facilitated focused endotherapy
Varadarajulu S, Wilcox M, Eloubeidi, M Impact of EUS in the evaluation of pancreaticobiliary disorders in children GASTROINTESTINAL ENDOSCOPY 2005;62 (2):239-244
Attila T, Adler D, Hilden K et al EUS in pediatric patients GASTROINTESTINAL ENDOSCOPY 2009;70 (5):892-8
A new diagnosis was provided by EUS in 86% of patients.
Abdullah Al-Rashdan, Julia LeBlanc, Stuart Sherman et al Role of Endoscopic Ultrasound for Evaluating Gastrointestinal Tract Disorders in Pediatrics: A Tertiary Care Center
Experiencee JPGN 2010;51: 718–722
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Choledocholithiasis in adults
It precluded the need for ERCP in 60-75%
Williams EJ,Green J et al Guidelineson the management of common bile duct stones. Gut 2008 A. Larghi, MC Petrone, D Galasso et al. Endoscopic ultrasound in the evaluation of pancreatobiliary disorders. Dig Liv Disease. 2010.
Sensibility 84-100%
Specificity 96-100%
EUS higher accuracy than CT and US.
Similar to MRI but EUS seems to be superior for small stones
(<3mm)
US and serological tests
low sensibility.
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Choledocholithiasis
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CHRONIC PANCREATITIS
EUS is usefull to determine the cause
(especially if lithiasis)
Seicean A. Endoscopic ultrasound in chronic pancreatitis: where we are? World J Gastroenterol 2010 A. Larghi, MC Petrone, D Galasso et al. Endoscopic ultrasound in the evaluation of pancreatobiliary
disorders. Dig Liv Disease. 2010 ;42.
Sensibility 68% - 100%
Specificity 78%-97%
Accuracy 32-88%
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CHRONIC PANCREATITIS
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CHRONIC PANCREATITIS
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Drainage of pancreatic cyst The common causes of pancreatic fluid collections (PFCs) in children worldwide are trauma (leading
cause up to 50% of cases), gallstone, idiopathic, hereditary, viral, or toxin-mediatedpancreatitis.
Conservative management: PFCs <6 cm. Therapeutic/surgical intervention:
PFCs ≥ 10 cm, that become symptomatic, persist for ≥ 6 weeks, continue to increase in size
Ramesh J, Bang J, Trevino J et al Endoscopic Ultrasound–guided Drainage of Pancreatic Fluid Collections in Children JPGN 2013;56: 30–35
Pseudocysts the most common cystic lesion in childhood, about 75%
of all cases
Jazrawi S, Barth B, Sreenarasimhaiah J Efficacy of Endoscopic Ultrasound-Guided Drainage of Pancreatic Pseudocysts in a Pediatric PopulationDig Dis Sci (2011) 56:902–908
Nonoperative failure rate of 26% to 33%
(the risk of spontaneous rupture) Surgical mortality rate of 0-10%
and morbidity rate 11-35%,
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Jazrawi S, Barth B, Sreenarasimhaiah J Efficacy of Endoscopic Ultrasound-Guided Drainage of Pancreatic Pseudocysts in a Pediatric PopulationDig Dis Sci (2011) 56:902–908
In the last years, endoscopic drainage of pseudocysts in adults has evolved towards EUS guided drainage to identify the location of the cyst, potentially intervening blood vessels, and the optimal site for puncture and subsequent stent placement.
EUS compared to gastroscopy for transmural drainage of
pseudocysts, the rates of technical success
were significantly better for the EUS-guided approach with even
minor complications
surgical cystogastrostomy compared to EUS guided drainage: clinical outcomes were comparable, but patients treated with EUS had
a significantly better quality of life, shorter length of hospital
stay,the technique was less costly
Varadarajulu S, Trevino J, Wilcox CM, et al. Randomized trial comparing EUS and surgery for pancreatic pseudocyst drainage. Gastrointest Endosc 2010;71:AB116
Endoscopic drainage of pseudocysts was
first introduced in the mid 1980s
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Jazrawi S, Barth B, Sreenarasimhaiah J Efficacy of Endoscopic Ultrasound-Guided Drainage of Pancreatic Pseudocysts in a Pediatric PopulationDig Dis Sci (2011) 56:902–908
It has been shown in a pediatric population that a persistent
pseudocyst exceeding 6 cm in size will require a drainage procedure
Single-step EUS-guided cyst-gastrostomy has a technical
success rate of 94%, with longterm pseudocyst resolution in 85% of cases
Jazrawi S, Barth B, Sreenarasimhaiah J Efficacy of Endoscopic Ultrasound-Guided Drainage of Pancreatic Pseudocysts in a Pediatric PopulationDig Dis Sci (2011)
56:902–908
single-step EUS-guided drainage is a minimally invasive,
safe, and a highly effective technique for the management
of symptomatic PFCs in children.
Ramesh J, Bang J, Trevino J et al Endoscopic Ultrasound–guided Drainage of Pancreatic Fluid Collections in Children
JPGN 2013;56: 30–35
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Immediate complications
bleeding (1%)
perforation (1%) Procedure-related infection
5%
(diminished by use of prophylactic antibiotics)
Jazrawi S, Barth B, Sreenarasimhaiah J
Efficacy of Endoscopic Ultrasound-Guided Drainage of Pancreatic
Pseudocysts in a Pediatric PopulationDig Dis Sci (2011) 56:902–908
Drainage of pancreatic cyst: limitations
long-term complications (15-24%)
stent migration delayed cyst infection pseudocyst recurrence
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Diagnostic yield of EUS by sonographic criteria
71%-84% in children
Abdullah Al-Rashdan, Julia LeBlanc, Stuart Sherman et al Role of Endoscopic Ultrasound for Evaluating Gastrointestinal Tract Disorders in Pediatrics: A Tertiary Care Center Experiencee JPGN 2010;51: 718–722
Mucosal/submucosal lesions
Although the incidence of subepithelial lesions
in the pediatric population is not known,
its incidence in the general population is 0.4% in
diagnostic endoscopies
Attila T, Adler D, Hilden K et al EUS in pediatric patients GASTROINTESTINAL ENDOSCOPY 2009;70 (5):892-8
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Pediatric mediastinal masses are a heterogeneous group of asymptomatic or potentially life-threatening congenital, infectious, and neoplastic
diseases.
Attila T, Adler D, Hilden K et al EUS in pediatric patients GASTROINTESTINAL ENDOSCOPY 2009;70 (5):892-8
Mediastinal masses
EUS can both identify and guide FNA of mediastinal nodes as small as 5 mm
EUS sensitivity for lymphoma 73% to 80%
ASGE guidelines Role of EUS for the evaluation of mediastinal adenopathy Gastrointest endosc 2011
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EOSINOPHILIC ESOPHAGITIS
a significant increase in esophageal mucosal layer both in the distal and
in mid-esophagus as compared to GERD and controls
KASPER DALBY, RASMUS GAARDSKÆR NIELSEN1 et al Gastroesophageal reflux disease and eosinophilic esophagitis in infants and children. A study of esophageal pH, multiple
intraluminal impedance and endoscopic ultrasound Scandinavian Journal of Gastroenterology, 2010; 45: 1029–1035
No difference between GERD and controls,
suggesting that the increase in mucosal thickness is
unique to EE.
EUS is superior to upper endoscopy for detecting gastro-esophageal varices in children with intestinal
failure-associated liver disease and results in fewer liver biopsies being necessary
McKiernan PJ, Sharif K, Gupte GL The Role of Endoscopic Ultrasound for Evaluating Portal Hypertension in Children Being Assessed for Intestinal TransplantationTransplantation 2008;86: 1470–1473
PORTAL HYPERTENSION
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3 types:
- the presence of ectopic tracheobronchial tissue (TBR), - the presence of a membranous diaphragm (MD), - segmental hypertrophy of the muscularis and submucosal layers with diffuse fibrosis (FMH) treated by bougienage or dilatation
Congenital esophageal stenosis
surgery
EUS has been found to be a useful imaging technique in
the evaluation of mucosal and submucosal lesions
Usui N, Kamata S, Kawahara H et al Usefulness of Endoscopic Ultrasonography in the Diagnosis of Congenital Esophageal Stenosis Journal of Pediatric Surgery
2002:37:1744-1746 Bocus P, Realdon S, Eloubeid M High-frequency miniprobes and 3-dimensional EUS for preoperative
evaluation of the etiology of congenital esophageal stenosis in children gastroint Enods 2011
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Rectal and anal disease
Rectal EUS is feasible in the pediatric population,and guided which patients were referred for surgical evaluation and seton placement, as well as the timing of seton removal.
EUS also accurately identified patients who did not require surgical
referral
EUS has the advantage that it may be done at the same time as colonoscopy
in the hands of gastroenterologist
Rosen MJ, Moulton DE, Koyama T et al Endoscopic Ultrasound to Guide the Combined Medical and
Surgical Management of Pediatric Perianal Crohn's DiseaseInflamm Bowel Dis. 2010
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EUS results influenced patient management in 86% of the patients
Lahat A, Assulin Y, Beer-Gabel M et al Endoscopic ultrasound for perianal Crohn's
disease: disease and fistula characteristics, and impact on therapy.J Crohns colitis
2012;6(3):311-6 EUS evaluation of perirectal and perianal complications of
Crohn's disease has been demonstrated to be superior to
fistulography, CT, and equal to or superior to MRI.
Lew RJ, Ginsberg GGThe role of endoscopic ultrasound in inflammatory bowel disease. Gastrointest Endosc Clin N Am 2002;12(3):561-71
Rectal and anal disease
Accuracy: EUS 91%; MRI 87%; examination under anaesthesia 91%.
In addition, a combination of any of the imaging modalities with examination under anaesthesia
provided 100% accuracy in these patients.
Schwartz DA, Herdman CRReview article: the medical treatment of Crohn’s perianal fistulasAliment Pharmacol Ther 2004; 19: 953–967.
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The major difference when performing EUS in children and in
adult patients is the type of anesthesia administered: general anesthesia in children for invasive
procedures is needed
The procedure is safe, with a reported complication rate of less than 1%.
Varadarajulu S, Wilcox M, Eloubeidi, M Impact of EUS in the evaluation of pancreaticobiliary disorders in children GASTROINTESTINAL ENDOSCOPY 2005;62 (2):239-244
EUS in children
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CONCLUSIONS….QUESTIONS??
small number of patients
the important role of an adult gastroenterologist in the management of the pediatric population
adults instrumentations
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EUS and EUS-FNA are safe procedures, and affect management of PB disorders in children.
Feasible applicability and safety of EUS with or without FNA for pediatric patients using echoendoscopes designed for use in adults
EUS could replace ERCP as a diagnostic tool for evaluation of most pancreatobiliary disorder
More studies are needed and more pediatric gastroenterologist need to be trained
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Thank you for the attention!
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PERSONAL CLINCIAL USEFULNESS in CHILDREN
upper EUS confirmed choledocolithiasis and
sclerosing cholangitis (100%)
in 1 of the 4 patients with recurrent pancreatitis EUS was completely
normal and in 3 patients EUS showed initial chronic pancreatitis treated
symptomatically; in all 3 patients with abdominal pain suggestive of PB origin,
EUS showed pancreatitis signs with gallbladder sludge and microlithiasis (<3mm) not reported at the US; in patient with abdominal trauma EUS
lower EUS ,,,,,,,,,,,,,,
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Per migliorare l’accuratezza:
Somministrazione di secretina
Utilizzo del contrasto
Elastosonografia
Gardner B, Levy m. Eus diagnosis of chronic pancreatitis. Gastointestinal endoscopy 2010 Seicean A. Endoscopic ultrasound in chronic pancreatitis: where we are? World J Gastroenterol 2010A. Larghi, MC Petrone, D Galasso et al. Endoscopic ultrasound in the evaluation of pancreatobiliary disorders. Dig Liv Disease. 2010 ;42.
ROSEMONT CLASSIFICATION
Criteri Major e minor B
A
Diagnosi è “consistent”:
1 major A + ≥ 3 minor
1 major A + 1 major B
2 major A
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Pancreatite cronica
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Pancreatite cronica
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Calcolosi coledoco
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Calcolosi coledoco
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Calcolosi della colecisti
Macro calcolo
Sludge
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Patologia anale
Rosen MJ et al. Endoscopic ultrasound to guide the combined medical and surgical management of pediatric perianal Crohn's disease. Inflamm Bowel Dis. 2010;16(3):461-8.
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PSEUDOCISTI
>70% delle lesioni cistiche del pancreas
4 settimane dopo un episodio di pancreatite acuta, e/o trauma
addominale
Contenente materiale necrotico e senza strato epiteliale
MD Morgan. Cystic lesions of the pancreas. Smeinars in Gastroenterology
G Garcea, A rajesh, CP Neal et al. Cystic lesions of the pancreas. Pancreatology 2008;8:236-51
FNA di pseudocisti
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CISTOADENOMA SIEROSO
Più frequente nelle donne (ratio 2:1), settima decade
Asintomatico
Solitamente nella testa pancreatica
Cicatrice stellata centrale con possibili calcificazioni (10-30%)
Nessuna comunicazione con il dotto pancreatico principale
Benigno (rischio di malignità 3%)
MD Morgan. Cystic lesions of the pancreas. Smeinars in Gastroenterology
G Garcea, A rajesh, CP Neal et al. Cystic lesions of the pancreas. Pancreatology 2008;8:236-51
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Adenoma microcistico sieroso (SMA)
Adenoma macrocistico sieroso
Cisti associate alla sindorme di Von Hippel-Lindau (VHL) (50-80%pz presenta cisti pancreatiche),
Cistadenocarcinoma sieroso
Roggin KK, Chennat J, Oto A, et al. Pancreatic cystic neoplasm
Curr Probl Surg. 2010 Jun;47(6):459-510
classificazione
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CISTOADENOMA MUCINOSO
Più frequente nelle donne (ratio 9:1), quinta-sesta decade
Lesioni solitarie, solitamente nel corpo-coda
Nessuna comunicazione con il dotto pancretico principale (o microcomunicazioni?)
Lesione premaligne, quindi richiede resezione chirurgica
Meno del 20% sono invasivi, i non invasivi si classificano in base al grado di displasia epiteliale (bassa, media, alta)
Presenza di aspetto di tipo “stroma ovarico”
Roggin KK, Chennat J, Oto A, et al. Pancreatic cystic neoplasm Curr Probl Surg. 2010
MD Morgan. Cystic lesions of the pancreas. Smeinars in Gastroenterology.
G Garcea, A rajesh, CP Neal et al. Cystic lesions of the pancreas. Pancreatology 2008;8:236-51
Prasad S et al Endoscopic ultrasound of pancreatic cystic lesions. ANZ J Surg.
2010.
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Tumore Mucinoso Intraduttale Papillare
Descritto nel 1982
Rapporto maschi/femmine 2:1
6-7° decade
Prevalentemente testa del pancreas
Eccessiva produzione di muco con accumulo nei dotti che si diltano, fuoriuscita di muco dalla papilla.
Lesione pre-maligna/maligna (5-7 anni per divenire invasiva)
Gourgiotis S, Ridolfini MP, Germanos S. Intraductal papillary mucinous neoplasms of the pancreas.
EJSO 2007
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COMBINATO: una combinazione del main duct type e branch type
Gourgiotis S, Ridolfini MP, Germanos S. Intraductal papillary mucinous neoplasms of the pancreas.
EJSO 2007
classificazione
SIDE BRANCH TYPE: interessa uno o più dotti periferici. Solitamente in
pazienti più giovani e con un minor potenziale maligno
MAIN DUCT TYPE: diffusa o parziale dilatazione del dotto pancreatico
principale specie nella testa
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Dotto pancreatico principale >1-1,5 cm
Dotto periferico >4 cm con setti irregolari
Noduli parietali >1 cm
Interessamento multifocale
Ostruzione biliare
Gourgiotis S, Ridolfini MP, Germanos S. Intraductal papillary mucinous neoplasms of the pancreas. EJSO 2007
MD Morgan. Cystic lesions of the pancreas. Seminars in Gastroenterology.
Segni di malignita’
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TUMORI SOLIDI
pancreas
Vie biliari
papilla
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Tumore del pancreas
Lesioni <2 cm:
EUS 90%, TAC 40%, MRI 33%
Garcia J et al. Endoscopic ultrasound in the diagnosis and staging of pancreatic cancer. Rev
Esp Enferm Dig 2009;101:632-8
Saftoiu A, tordache SA, Gheonea Dt et al. Combined contrast-enhanced power Doppler and real-time sonoelastography performed during EUS, used in the differential diagnosis of focal pancreatic masses.
Gastrointest Endosc. 2010 Oct;72(4):739-47.
EUS permette di visualizzare lesioni non identificabili con altre metodiche.
Aumenta per lesioni < 3cm:
EUS 93%, TAC 53%, MRI 67%
Sensibilità EUS 94%, sensibilità TAC 86%
Accuratezza di EUS-FNA 85% - 95%
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Accuratezza N
Da valutare
perigastrici, periduodenali,
del plesso celiaco, ilo epatico, mediastinici
Garcia J et al. Endoscopic ultrasound in the diagnosis and staging of pancreatic cancer.
Rev Esp Enferm Dig 2009;101:632-8
Accuratezza EUS 64-82%, ma
NON DISTINGUE INFIAMMATORI/NEOPLASTICI
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Puli RS et al. Diagnostic accuracy of EUS for vascular invasion in pancreatic and peryampullary cancers:
a meta analysis and systematic review. Gastrointestinal Endoscopy 2007;65
Invasione vascolare
EUS ha una alta specificità (90%) ma sensibilità inferiore (73%) nel diagnosticare infiltrazione vascolare
Accuratezza EUS 40-100%, simile a MRI
EUS/TAC Infiltrazione venosa accuratezza simile
Infiltrazione vena/arteria mesenterica, tripode celiaco TAC più accurata
Infiltrazione della porta EUS più accurata Infiltrazione vena/arteria splenica più accurata EUS.
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Ca pancreatico e pancreatite cronica
Per migliorare l’accuratezza:
Contrast-enhanced power Doppler (CEPD) : ca pancreatico ipovasculare, tumori neuroendocrini e metastasi
isovasculari o ipervasculari (aumento della sensibilità fino al 93%), pancreatite cronica non ha vascolarizzazione prime del contrasto,
vascolarizzazione regolare dopo contrasto
Elastosonografia: tumori tessuti duri, quelli infiammatori “soft”
Saftoiu A, tordache SA, Gheonea Dt et al. Combined contrast-enhanced power Doppler and real-time sonoelastography performed during EUS, used in the
differential diagnosis of focal pancreatic masses. Gastrointest Endosc. 2010 Oct;72(4):739-47.
A. Larghi, MC Petrone, D Galasso et al. Endoscopic ultrasound in the evaluation of pancreatobiliary
disorders. Dig Liv Disease. 2010 ;42.
Sensibilità EUS inferiore 75% specialmente nel caso di pancreatite cronica
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Neoplasie del pancreas
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FNA
3 passaggi con ago da 25 G: adk pancreatico
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2 passaggi con ago da 25 G: adk pancreeatico
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TUMORI NEUROENDOCRINI
EUS Lesioni ipoecogene, a margini netti, ovoidali,
ipervascolarizzati
Specificità EUS 67%, PET 83%, TAC 80%
Accuratezza sovrapponibile Versari A, Camellini L, Carlinfante G et al. Ga-68 DOTATOC PET, endoscopic ultrasonography, and
multidetector CT in the diagnosis of duodenopancreatic neuroendocrine tumors: a
single-centre retrospective study. Clin Nucl Med. 2010 May;35(5):321-8.
Incidenza: aumento 300-500% negli ultimi 35 anni in USA
Classificazione:
secondo il neuropeptide predominante
Funzionanti o non funzionanti
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.
Confronto EUS e TAC in 34 pazienti:
EUS non ha identificato 1 tumore 15 mm
TAC non ha identificato 8 lesioni Midwinter MJ, et al. Correlation between spiral computed tomography,
endoscopic ultrasonography and findings at operation in pancreatic and ampullary tumours. Br. J. Surg. 1999; 86: 189-93
EUS più sensibile della spiral TAC per lesioni inferiori a 3 cm
(100% versus 56%) Howard TJ, et al. Value of helical computed tomography, angiography, and endoscopic ultrasound in determining resectability of periampullary carcinoma. Am. J. Surg. 1997;
Accuratezza dell’EUS 84,4% Tio TL, Sie LH, Kallimanis G et al. Staging of ampullary and
pancreatic carcinoma: comparison between endosonography and surgery. Gastrointest. Endosc. 1996
Accuratezza EUS è 67% per T1, 71% per T2, 83% per T3
Kubo H, Chijiiwa Y, Akahoshi K, Hamada S, Matsui N, Nawata H. Pre-operative staging of ampullary tumours by endoscopic ultrasound. Br. J. Radiol. 1999; 72: 443-7.
TUMORI PAPILLA
EUS più accurata della TAC per tumori inferiori a 2 cm
(99% versus 70%) Shoup M, Hodul P, Aranha GV et al. Defining a role for endoscopic
ultrasound in staging periampullary tumors. Am. J. Surg. 2000; 179: 453-6.
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Diagnosi
EUS altamente sensibile nell’identificare tumori anche di piccole
dimensioni, invasione vascolare
superiore alla TAC, alla RMN, alla PET
Se disponibile, deve essere eseguita prima della rimozione endoscopica e/o chirurgia
BMJ Publishing Group Ltd and British Society of Gastroenterology. Guidelines for the management of patients with pancreatic cancer periampullary an ampullary carcinomas. Gut 2005;54:1-16
ERCP permette: eseguire biopsie, eseguire manovre operative.
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STADIAZIONE EUS
K Ito et al. Preoperative evaluation of ampullary neoplasm with EUS and transpapillary intraductal US: a
prospective and histopathologically controlled study. Gastrointestinal Endoscopy 2007;66:740-747
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ampulloma
Dilatazione del coledoco a monte
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TUMORI DELLE VIE BILIARI
A. Larghi, MC Petrone, D Galasso et al. Endoscopic ultrasound in the evaluation of pancreatobiliary
disorders. Dig Liv Disease. 2010 ;42.
ERCP con biopsie/citologia è necessaria per avere istologia
(20% stenosi benigno)
EUS utile per determinare la causa della stenosi (tumore testa pancreatica, pancreatite cronica)
e per la valutazione linfonodale
EUS+FNA sensibilità: 43-86% per stenosi biliari
25-83% stenosi dell’ilo epatico
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Calcolosi coledoco
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Pancreatite cronica calcifica
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Caratteristiche EUS di malignità
N. Pausawasdi, JM Scheiman Pancreatic cystic lesions. Curr Opin
Gastroenterol 2010;26:506-12
Componente solida associata alla cisti
Vegetazioni parietali
Cisti complesse
Dimensioni >2 cm
Dilatazioni dotti pancreatici
Linfoadenomeaglie
Accuratezza dell’EUS da sola varia 51-73%
EUS + FNA
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EUS + FNA
Chimica Amilasi elevate nelle pseudocisti, IPMN, tumori mucinosi
basse tumori sierosi
Lipasi elevate (>6000 U/L) pseudocisti e IPMN
basse
P. Draganov Cystic neoplasms of the pancreas: a diagnostic challenge. World J
Gastroenterol 2009;15:48-54
M. Bishop Pitman, K. Lewandroski, J Shen et al. Pancreatic cysts. Cancer Cytopathology Feb 2010
N. Pausawasdi, JM Scheiman Pancreatic cystic lesions. Curr Opin Gastroenterol
2010;26:506-12
Citologia Ricerca cellule epiteliali colonnari mucina (tumori mucoidi, tumori intrduttali papillare mucinoso)
Ricerca cellule epiteliali cuboidali glicogeno (tumori sierosi)
Molecolare
KRAS, p53
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EUS + FNA
Markers
CEA, CA 19-9, CA 125 CA72-4
CEA è il più accurato elevato nelle forme mucinose
basso nelle forme sierose
(CEA < 5ng/mL sensibilità 50-100%
specificità 77-95% per sierosi)
(CEA > 192 ng/ml sensibilità 75%
specificità 84% per mucinosi)
(CEA >800 ng/ml specificità 98%)
P. Draganov Cystic neoplasms of the pancreas: a diagnostic challenge. World J
Gastroenterol 2009;15:48-54 M. Bishop Pitman, K. Lewandroski, J Shen et al. Pancreatic cysts.
Cancer Cytopathology Feb 2010