Alar, TimucinOzcelik, CemalKlnc, Nihal2025-01-272025-01-2720110038-43481541-8243https://doi.org/10.1097/SMJ.0b013e3182142df6https://hdl.handle.net/20.500.12428/28458A 26-year-old man presented with shortness of breath on exertion that was gradually getting worse. His history revealed a mass in the left hemithorax that had been growing on follow-ups. Physical examination only showed that the respiratory sounds were fainter on the left. Thoracic computerized tomography was performed to elucidate the left hemithorax lesion seen on chest x-ray and a giant mass of lipid density extending from the anterior mediastinum to the diaphragm and filling almost the entire left hemithorax was observed. Total excision of the 25 x 21 x 8 cm mass weighing 1580 g was performed with a left thoracotomy. The histopathology investigation of the mass was reported as thymolipoma. The case was presented because it is a rare mediastinal mass.eninfo:eu-repo/semantics/closedAccessmediastinal massthymolipomathymusArticle104535335410.1097/SMJ.0b013e3182142df6Q3WOS:0002901520000162-s2.0-7995557813921606717Q2