urgent care dermatology
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Urgent Care DermatologyDermatology Differential Diagnosis in Images
James S. Studdiford, MDKathryn P. Trayes, MDJune 23, 2021
2019 Eastern Shore Symposium Presentation
• Annals of Internal Medicine, February 4, 2020• Prolongation of the PR interval >200 ms occurs in 90% of
patients with disseminated Lyme disease.
Case 1• 57 yo M from Vermont: fever, fatigue, SOB, CP• EKG: first degree AV block with PR interval 220 ms• Lyme test ordered, came back + 2 days later, not treated• 8 days later, pt presented to ED, worsening symptoms, ID
consulted, F/U appt scheduled, no Tx• 12 days later: pt found unresponsive
Cautionary Tale: Fatal Lyme Carditis in New England: Two Case Reports
Ann Intern Med, Feb 4, 2020; 172(3): 222-24
• Case 2• 49 yo F presented to ED with HA, nausea, vomiting• Normal CT head and EKG• IV fluids, antiemetics, analgesics, D/C home• 2 weeks later, saw PCP with c/p 2 episodes of syncope with
bowel and bladder incontinence, persistent fatigue, nausea and SOB
• EKG: AV dissociation• Cardiology ordered cardiac event monitor and lab tests
including Lyme• 2 days later, + Lyme result, Doxy started, but before she
took the first dose, she went into V tach and died
Cautionary Tale:
Ann Intern Med, Feb 4, 2020; 172(3): 222-24
Cautionary Tale:
Ann Intern Med, Feb 4, 2020; 172(3): 222-24
• Carditis can be an early manifestation of Lyme disease
• Lyme carditis should be considered when younger patients present with severe conduction abnormalities
• EKG is essential
• AV block in Lyme carditis can progress rapidly and be fatal
• Treat with antibiotics empirically
Take Home Points
Ann Intern Med, Feb 4, 2020; 172(3): 222-24
Correctly diagnosing dermatologic disease can save lives!
Dermatology is more than just identifying and treating
rashes!
Objectives
● Outline and practice the approach to dermatologic diagnoses
● The role of the history and physical examination
● Common entities
● Diagnostic challenges
Our GOAL: - Master the diagnosis and treatment of skin conditions- Appreciate that this expertise falls within the purview of Family Med/EM/IM/peds/etc..
Treatment
Natural history
Visual diagnosis
Workup
Morphology
Location
Border
Pattern
Differential
Diagnosis
Welcome to DERM think – defining moments
Primary lesion
History
Nodular lesions: pyogenic granuloma, MRSA
6/20/2021
Erythema nodosum
Annular and Targetoid Lesions
American Family Physician, Sept 2018; 98(5): 283-91
69 yo F with “itchy/burning rash” which developed one week after initiating Bactrim
American Family Physician, Sept 2018; 98(5): 283-91
Fixed Drug Eruption
American Family Physician, Sept 2018; 98(5): 283-91
Erythema Multiforme
18 yo male with a rash that developed shortly after receiving Menactra
vaccination Pharmacotherapy, Nov 2006; 26(11): 1658-61,
Treatment:self-limited, ; steroids,
Anti-virals for associated recurrent
HSV-1
Workup:Visual Dx
(plus pertinent History)
“Multiple raised, annular, targetoid lesions”
Lesions appeared suddenly after
vaccination
Differential: urticaria, LD, pityriasis R,
contact dermatitis Diagnosis: Erythema
multiforme
Etiology:Infections (~90% ),
Medications (~10%)
vaccinations
18-y-o male developed a red rash following a menactra vaccination
Pharmacotherapy, Nov 6, 2006; 26(11): 1658-61
Erythema multiforme
IgA vasculitis, Henoch-Schonlein Purpura
21 yo with a sore throat. One week later developed small red spots on ankles which grew to larger lesions over the
next two days. + ankle swelling.American Family Physician, Sept 2018; 98(5): 283-91
IgA vasculitis Work up
16 yo with a history of eczema presents with fever, malaise and a one-week history of a
“bumpy”, painful skin rash. Emerg Med, Feb 2011; 40(2): 167-9
Herpes Zoster
Nails
Quote attributed to Abraham Herzberg, DPM
American Family Physician, April 15, 2012; 85(8): 779-87
Beau’s lines, vertical nail bands
American Family Physician, April 15, 2012; 85(8): 779-87
Splinter hemorrhages, koilonychia
Psoriasis
Studdiford JS,et al. Images from the Wards: Diagnosis and Treatment. Saunders Elsevier, 2010.
Queen Anne’s sign, trichotillomania,alopecia areata
Daycare specials
5 yo with fever and decreased appetite. Three days later she developed erythematous macules on cheeks and then a lacey
reticular rash on her upper extremities and trunk
6/20/2021
29
Erythema infectiosum
3 yo low-grade fever, malaise and decreased appetite. One day later, she developed a rash that started on her hands
30
Coxsackie
31
17 mos with three days of fever to 102-103°F, decreased appetite. On day three, he developed a rash on trunk and
proximal extremities
Roseola
In Summary….
• Urgent Care Dermatology
• Higher acuity
• Think like dermatologists
• Lyme carditis
• nodular, annular, violaceous
• A difficult diagnosis: Eczema herpeticum
• Update on nails and hair
• Childhood infectious diseases
Entities Discussed Today:
• Disseminate Lyme Disease• Pyogenic granuloma• MRSA cellulitis with
furuncle• Erythema nodosum• IgA vasculitis• Eczema herpeticum• Staphylococcus aureas• Varicella Zoster• Beau’s lines• Splinter hemorrhages
• Koilyonychia• Plaque psoriasis• Onycholysis• Alopecia universalis• Trichotillomania• Alopecia areata• Erythema infectiosum• Coxsackie• Roseola
References:• Fitzpatrick JE, High WA, Kyle WL. Urgent Care Dermatology Symptom-Based Diagnosis.
Philadelphia, Elseiver, 2018.
• Marx GE, Leikauskas J, Lindstrom K, etc. al. Ann Intern Med. Feb 4, 2020; 172(3): 222-24.
• Studdiford JS, Altshuler M, Salzman B, Tully A. Images from the Wards: Diagnosis and Treatment. Philadelphia, Saunders Elsevier, 2010.
• Studdiford JS, Altshuler M et al, "Erythema multiforme after meningitis vaccine: patient safety concerns with repeat immunization.” Pharmacotherapy. Nov 6, 2006; 26(11):1658-61.
• Studdiford JS, Valko G, Stonehouse AS. “Eczema herpeticum: Making the Diagnosis in the Emergency Department.” Emerg Med. Feb 2011; 40(2): 167-9.
• Trayes KP, Savage K, Studdiford JS. “Annular Lesions: Diagnosis and Treatment.” American Family Physician. Sept 1 2018; 98(5): 283-91.
• Tully AS, Trayes KP, Studdiford JS. “Evaluation of Nail Abnormalities.” American Family Physician. April 15, 2012; 85(8): 779-87.
Thank you for your time and attention!
Contact information
Kathryn.Trayes@jefferson.edu
James.Studdiford@gmail.com
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