Tuberculosis

A chronic, recurrent infection caused by the bacterium Mycobacterium tuberculosis. Tuberculosis (TB) may affect almost any tissue or organ of the body with the lungs being the most common site of infection. The clinical stages of TB are primary or initial infection, latent or dormant infection, and recrudescent or adult-type TB. Ninety to 95% of primary TB infections may go unrecognized. Histopathologically, tissue lesions consist of granulomas which usually undergo central caseation necrosis. Local symptoms of TB vary according to the part affected; acute symptoms include hectic fever, sweats, and emaciation; serious complications include granulomatous erosion of pulmonary bronchi associated with hemoptysis. If untreated, progressive TB may be associated with a high degree of mortality. This infection is frequently observed in immunocompromised individuals with AIDS or a history of illicit IV drug use.

Disease Alternative Name

active tuberculosis

tuberculosis disease

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Pooja Laharia

Paediatrics

BRONCHIECTESIS IN CHIDREN - -This is a chronic suppurative disease characterized by destruction of bronchial and peribronchial tissues, dilatation of the bronchi and accumulation of infected material in the dependent bronchi. - Most case...See More

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Pooja Laharia

Paediatrics

LOEFFLER SYNDROME IN CHILDREN - -During their life cycle, larvae of many nematodes (intestinal parasites) enter the portal circulation, and pass through the hepatic vein and inferior vena cava into the heart and lungs. - In the lungs, th...See More

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