2018 Volume 32 Issue 4 Pages 529-532
Cholesteroloma is a foreign-body-type granuloma that forms in reaction to cholesterol crystals. It is a commonly described as a benign condition affecting the middle ear and paranasal sinus disease. We report a rare case of cholesteroloma in the anterior mediastinum involving a 56-year-old asymptomatic man. Chest computed tomography showed a 2.0-cm nodular lesion in the anterior mediastinum. T1- and T2-weighted magnetic resonance images revealed hypo-intense signals. Therefore, a thymoma, bronchiogenic cyst, or lymphangioma was considered as a preoperative diagnosis. Video-assisted thoracic surgery (VATS) was performed for therapeutic purposes. The pathological diagnosis was a cholesteroloma, which originated from the thymus.
