Deep vein thrombosis of the left arm revealing an asymptomatic pulmonary tuberculosis.

Although not frequent, thromboembolic events occurring in patient presenting tuberculosis may be observed. Frequency of such thromboembolic events seems correlated with the severity of tuberculosis. We herein report a case of venous thrombosis revealing an asymptomatic tuberculosis. A man aged 32 years was admitted for deep and superficial vein thrombosis of the left arm. Chest CT angiography ruled out pulmonary embolism and showed a mediastinal and pulmonary heterogeneous necrotic mass at the apical segment of the left lung. Histological study of a CT scan-guided pulmonary biopsy showed signs of caseating granuloma compatible with tuberculosis. Diagnosis of venous thrombosis due to pulmonary tuberculosis with lymph nodes involvement was made. Antituberculosis treatment was initiated and required an adjustment of anticoagulant therapy. Our observation highlights the possibility of causative effect between tuberculosis and venous thrombosis. © BMJ Publishing Group Limited 2019. No commercial re-use. See rights and permissions. Published by BMJ.