tuberculous pneumonia - isr tb pneumonia.pdf · tuberculous pneumonia (2) • the research of afb...
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Tuberculous pneumonia
Etienne Leroy Terquem – Pierre L’Her
SPI / ISP Soutien Pneumologique International / International Support for Pulmonology
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Quiz - Pneumonia
(pre test)
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F, 28 y old, fever 38°, cough, sputum.
What is the most likely diagnosis ?
Select one answer:
A. Pulmonary abcess
B. TB pneumonia
C.Bacterial pneumonia
1
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Select one answer:
A. TB pneumonia
B. Left upper lobe partial
atelectasis by lung cancer
C. Bacterial pneumonia
2
Man, 50 y old, alcoholism and smoking. Worsening
condition, cough, hemoptysis. Left chest pain
Sputum : AFB negative
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Fever, cough, dyspnea, thoracic pain
With that CXR, what is your diagnosis ? 3
Select one answer:
A. Tumor
B. Pleural effusion
C. Bacterial pneumonia
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Young man t ° 39 ° C, cough, purulent sputum and
right chest pain, sudden onset
What is the most likely diagnosis
Select one answer:
A. Bacterial pneumonia
B. TB
C. Tumor
4
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Man , 30 years old, cough, fever & dyspnea 5
Select one answer:
A. TB pneumonia
B. Cancer
C. Bacterial pneumonia
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Common adult TB Basic radiological images:
• Nodule
• Infiltrate
• Cavity
• Tuberculous pneumonia
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Tuberculous pneumonia(1)
• This is an alveolar image: non-homogenous, not
clearly limited, except if contact with fissure, with
aeric bronchogram
• The association with other TB lesions is very
frequent: adenopathies, nodules and infiltrates,
especially in AIDS patients
• The lesions are often bilateral
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Tuberculous pneumonia (2)
• The research of AFB is most often positive in sputum, because these lesions are very rich in tuberculous bacilli.
• The spontaneous evolution is the constitution of cavitation and destruction of the lung tissue, retraction and fibrosis => important sequelae if treatment is too late.
• Tuberculous pneumonia is frequent among PLHIV. In this case the pneumonia is as frequent in the inferior lobes as the superior, and is often associated with adenopathies. The excavation is unfrequent in cases of severe immunodepression.
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Aeric bronchogram
Alveolar pattern -Non homogenous
-Not well limited
-Systematised if contact with fissure
-Possible bronchogram
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Bilateral tuberculous pneumonia with mediastinal hilar
adenopathies and adenopathies in superior mediastinum AFB positive in sputum
HIV +
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AFB ++ in sputum: right superior lobe pneumonia.
Notice the beginning of the lobe retraction and controlateral nodules: the
association is highly indicative of TB.
Man, 30 years old. Dyspnea, fever, cough and weight loss over two months.
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Chest x-ray at the end of treatment. Retractile evolution with
ascension of the right hilus.
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17 y old boy, cough and worsening condition.
AFB+++ in sputum. HIV negative
CXR: left upper lobe TB excavated pneumonia + Right axillary TB
infiltrate
Association of 2 lesions of different seniority is very typical of TB
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Man, 80 years old, worsening condition, dyspnea,
non productive cough, no available sputum
Bronchial aspiration: AFB+++
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Tuberculous pneumonia
Retractile evolution with important sequelae
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African officer an internship in France, t 38 ° C,
Good condition, No respiratory signs
Excavated opacity
apical segment of Right Lower Lobe
AFB +
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aeric bronchogram
cavern
nodules
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Tuberculous pneumonia AFB +
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Chest x-ray at the end of the TB treatment
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TB pneumoniae are frequent in countries with a high incidence of TB,
in HIV- patients, and also in case of AIDS:
In this case adenopathies in the mediastinum
are frequently associated, and the localisation in the inferior lobes is not rare.
The lesions are often bilateral.
If the immunosuppression is severe, the cavities are rare.
HIV - HIV+ HIV+
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-Tuberculous pneumonia. HIV+, CD4< 100.
- Bilateral lesions (bad quality CRX, inadequat penetration and contrast)
- Localisation in middle lobe and left inf.
- Latero-tracheal adenopathy
- no cavitation (notice metallic bilateral pictures: subcutaneus implant, local traditional medecine)
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Man, 30 years old
HIV +
RSL pneumonia
hilar adenopathies
AFB x3 negative
Broncho-aspiration
and bronchio-alveolar
lavage: AFB+ +
Endoscopy: fistula from a
tuberculous adenopathy
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Man HIV+, miliary, medastinal adenopathies
(mediastinal enlargment), right pneumonia AFB+
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But all pneumoniae are not tuberculous.
The clinical context is vital for diagnosis…
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Young man, no pathological antecedents, sudden
onset of symptoms with fever, chills, thoracic pain
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Acute lobar pneumonia (Streptococcus pneumoniae)
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HIV+ context, cough and dyspnea , weight loss,subacute
evolution,.
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Adenopathies in mediastinum and hilus area associated with
middle lobe and left upper lobe pneumonia, HIV context : it is not
an acute lobar pneumonia
It is a TB pneumonia.
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Young woman, good health, 39-40°C fever for 48h, non-productive
cough and right thoracic pain:
Acute pneumonia (probable infection with S. pneumoniae)…
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Woman 40 years old, no medical antecedents, fever
and chills with acute onset: bilateral pneumonia with
acute respiratory failure. Positive blood culture with
Streptococcus pneumoniae
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In cases of AIDS, if severe dyspnea, normal or subnormal
auscultation, and diffuse non-excavated pneumonia,
consider PNEUMOCYSTOSIS
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Mycoplasma pneumonia: resistant to amoxicilline;
improvement with macrolides
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Legionnaire’s
disease
Young man, severe dyspnea and fever, headache, abdominal pain,
No improvement with amoxicillin…
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Conclusion1
• Pneumonia is a frequent clinical manifestation of tuberculosis in countries with a high incidence of TB
• The lesions are often bilateral and associated with other lesions: nodules, adenopathies, cavities.
• AFB in sputum are often positive, but do not neglect the causes of false negatives: salivary sputum, patient too weak for reliable sputum, technical error, treatment begun before sampling.
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Conclusions 2
• The tuberculous pneumoniae are frequent in cases of AIDS: All the lobes can be affected (particularly the inferior lobes) and are often associated with bulky adenopathies. In cases of severe immunodepression, cavitation is rare.
• Differential diagnosis with the other infectious pneumoniae is only possible with the history-taking and clinical examination, which must always be associated with the analysis of the chest radiography.
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Quiz - Pneumonia
(post test)
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F, 28 y old, fever 38°, cough, sputum.
What is the most likely diagnosis ?
Select one answer:
A. Pulmonary abcess
B. TB pneumonia
C.Bacterial pneumonia
1
TB pneumonia
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Select one answer:
A. TB pneumonia
B. Left upper lobe
atelectasis by lung cancer
C. Bacterial pneumonia
2
Man, 50 y old, alcoholism and smoking. Worsening
condition, cough, hemoptysis. Left chest pain
Sputum : AFB negative
B. Left upper lobe
atelectasis by lung cancer
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Fever, cough, dyspnea, thoracic pain
With that CXR, what is your diagnosis ? 3
Select one answer:
A. Tumor
B. Pleural effusion
C. Bacterial pneumonia
Pleural effusion
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Young man t ° 39 ° C, cough, purulent sputum and
right chest pain, sudden onset
What is the most likely diagnosis
Select one answer:
A. Bacterial pneumonia
B. TB
C. Tumor
4
Bacterial pneumonia
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Man , 30 years old, cough, fever & dyspnea 5
Select one answer:
A. TB pneumonia
B. Cancer
C.Bacterial pneumonia
A. TB pneumonia