This 30-years old patient was found to have a thymic lesion on a CT scan following a pre-employment chest radiograph that showed superior mediastinal widening. She had no signs or symptoms.
A CT guided biopsy was done. When the 18G coaxial biopsy gun needle was introduced, jelly like fluid was aspirated. A biopsy was obtained from one of the septa. I also did a post-contrast study to reconfirm the margins of the lesion.
The biopsy report was that of a benign thymic cyst.