A Baffling “Trilogy” --- Mediastinal Teratoma, Pulmonary Hamartoma and Hilar Granulomatous Lymphadenitis in a Single Patient: Unaccountable in Medical History

Abstract

Mediastinal teratomas are the most common extra-gonadal germ cell tumours. They arise from ectopic pluripotent stem cells that fail to migrate from yolk endoderm to the gonad. They occur equally in men and women and usually are diagnosed in the second to fourth decade of life. Pulmonary hamartoma usually occurs as a benign, well-circumscribed single nodule in the lung parenchyma. Being more common in the sixth decade. Granulomatous lymphadenitis more commonly occurring in cervical lymphnode is also commonly seen in hilar lymph node. Here, we present a 17 year old male with all the three presentations, which itself is a rare occurrence.