Unusual case of coexistent pulmonary cryptococcosis and tuberculosis in an immuno-competent host.

Coexistence of pulmonary cryptococcosis with other infections has commonly been described in immuno-suppressed individuals. In immuno-competent hosts, such coexistence is rare and mostly described in disseminated disease or uncommonly involving different sites. The simultaneous coinfection of cryptococcosis and tuberculosis of lung in an immuno-competent host is extremely rare with only one previously reported case in the literature. This is the second such case and the first to be reported in India. We describe a case of a 36-year-old immuno-competent male who presented with haemoptysis and cough. Computed tomography showed a sub-pleural lung nodule. Diagnostic thoracoscopic wedge resection of the right lung nodule revealed granulomatous inflammation with cryptococcus on histopathology. Coexistent tuberculosis was diagnosed by microbiological culture study on lung tissue. The patient responded clinically to fluconazole and anti-tubercular therapy. This case shows that although rare, coexistent infections can occur in immuno-competent persons and highlights the importance of careful evaluation and tissue microbiological culture examination.