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[Parietal thoracic tuberculosis in the absence of immunosuppression by HIV infection].

Parietal thoracic abscess formation of a tuberculous nature is a rare form of extrapulmonary tuberculosis, usually described in cases of severe tuberculosis encountered in HIV-infected patients. We report 13 cases of parietal tuberculosis in patients without HIV infection who were investigated between October 1988 and December 1999. During this period, we cared for 2 663 patients with tuberculosis. The series included 9 women and 4 men age 17 to 60 years, mean age 39 years. The clinical aspect of the parietal abscess was variable. Cold fluctuating abscess was dominant in 10 cases. In 3 cases, the parietal abscess had a hard consistence simulating a malignant tumor. The parietal abscess was in a posteriosuperior or posteriobasal location in 4 cases, and in an anterosuperior, anterobasal or axillary location in 6. Multiple thoracic abscesses were observed in only 3 cases. The size of the abscess varied from 2 to 2.5 cm. Radiologically, rib damage was present in 4 cases, scapular damage in 1, with bone lysis in 3 cases. Other localizations of tuberculosis were observed in 4 cases. one patient had multiple peripheral node enlargement, another had parenchymal lung damage and a third had a vertebral localization. Culture of abscess pus provided the diagnosis in 10 cases. the diagnosis was confirmed by pathology in 8 cases on a biopsy of the abscess border. Anti-tuberculosis drugs allowed successful recovery in all patients. We analyzed the clinical aspects of cold thoracic abscesses and discuss differential diagnosis. Early diagnosis and treatment is essential.