2018 Volume 32 Issue 5 Pages 659-666
Mucoepidermoid carcinoma is common in the salivary glands and bronchus, but extremely rare in the thymus, which composes 4.6% of thymic carcinoma.
A 37-year-old woman had an abnormal shadow pointed out on a chest roentgenogram. CT and MRI of the chest showed a well-circumscribed solid cystic mass with eggshell-like calcification in the anterior mediastinum.
The maximum SUV was 2.65 on 18F-FDG PET/CT. She underwent surgical resection by complete video-assisted thoracic surgery with both diagnostic and curative intent. The tumor showed no invasion of neighboring organs and the resected specimen was very hard, with peripheral calcification. The pathological diagnosis was mucoepidermoid carcinoma of the thymus (Stage I using Masaoka staging system).
We report a case of mucoepidermoid carcinoma of the thymus with eggshell-like calcification, along with a review of the literature.
