Large intrathoracic thymolipoma

Thymolipoma is a rare, benign tumour in the anterior mediastinum, representing about 2-9% of thymus neoplasms. It consists of fat tissue mixed with thymus tissue and is often discovered incidentally. Symptoms may occur due to compression of nearby structures. In this case, a 41-year-old woman with upper back pain and shortness of breath was diagnosed after an MRI showed a large lipomatous tumour in the mediastinum. The tumour was surgically removed, and pathology confirmed thymolipoma.