Late recurrence of a cardiac glomus tumor

Glomus tumors, also known as paragangliomas or chemodectomas, arise from well-differentiated mesenchymal cells that are known to be benign. These tumors account for 2% of all soft tissue tumors. The first case of a cardiac glomus tumor was reported in 1924 by Masson.1 Glomus tumors located within the pericardial tissue are extremely rare. We present the case of a recurrent cardiac glomus tumor. The preoperative investigation, diagnostic problems and surgical treatment of this case will be highlighted. Moreover we wish to emphasize the importance of such an entity and to remind readers that it must be included in the differential diagnosis of a pericardial tumor.