This article is to discuss the clinical picture of T.B ( manifestations | symptoms and signs ) .
TB is usually classified as pulmonary or extrapulmonary. In absence of HIV infection, it involves the lungs only in > 80% of cases. In presence of HIV, up to 2/3 of patientswith TB have either extrapulmonary disease alone or both pulmonary and extrapulmonary disease.
I- Clinical picture of Primary complex TB is usually classified as pulmonary or extrapulmonary. In absence of HIV infection, it involves the lungs only in > 80% of cases. In presence of HIV, up to 2/3 of patientswith TB have either extrapulmonary disease alone or both pulmonary and extrapulmonary disease.
(it is often seen in children)
In most cases the primary infection produces no symptoms or signs. Fever, dry cough may occur for 1-2 weeks so, the condition usually passed unnoticed unless the following investigations are done. :
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Chest x-rayIn most cases the primary infection produces no symptoms or signs. Fever, dry cough may occur for 1-2 weeks so, the condition usually passed unnoticed unless the following investigations are done. :
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,
Sputum examination
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Tuberculin test
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shows conversion from -ve to +ve
So clinical disease results from the development of hypersensitivity or progression of the primary complex.
(A) Hypersensitivity: to tubercle bacilli may occur leading to:
a- Erythema nodosum * Bluish red nodule
* Raised
* Tender
* Cutaneous on the skin of tibia
* Tuberculin test is strongly + ve
b- Pleural effusion===> exudative reaction (Hypersensitivity)
c- Phylectinular conjunctivitis.
(B) Progression of primary pulmonary tuberculosis :
a- Erythema nodosum * Bluish red nodule
* Raised
* Tender
* Cutaneous on the skin of tibia
* Tuberculin test is strongly + ve
b- Pleural effusion===> exudative reaction (Hypersensitivity)
c- Phylectinular conjunctivitis.
(B) Progression of primary pulmonary tuberculosis :
Read more at : Manifestations of Pulmonary Tuberculosis