Giant Thymolipoma – A Rare Benign Tumour of the Thymus Gland

Thymolipoma is a rare benign tumour of mediastinum. It is often asymptomatic but can enlarge significantly prior to the diagnosis. It consists of thymic and fatty tissue surrounded by a capsule. A 23-year-old man sought medical attention for respiratory distress since 10 years progressively increasing in severity. Computed tomography findings were suggestive of a space occupying lesion in the anterior mediastinum with extension into hemi-thorax on either side. The tumour was surgically resected by median sternotomy. The tumour measured ∼21x25x10 cm and weighed 2800 gm. Histopathological examination revealed thymolipoma.