Mediastinal Teratoma with Pulmonary Parenchyma Fistula: A Rare Diagnostic Endeavour.

Teratoma is the most frequent mediastinal germ cell tumour amongst young population. They are often detected due to pressure symptoms or as an incidental finding on chest X-ray done for any other reason. Mediastinal teratoma is usually benign and rarely possesses diagnostic or therapeutic challenge unless they rupture into surrounding viscera. In such scenario, they may lead to acute life threatening condition and need prompt diagnosis and surgical extirpation. Here, we are reporting our experience of managing a young lady, who presented with short duration breathing difficulty and cough, and was diagnosed with ruptured mediastinal teratoma on imaging, which was further confirmed intraoperatively and histopathologically.