Myopericytoma arising adjacent to the common carotid artery: Case report and systematic review of deep located neck myopericytomas.

BACKGROUND: Myopericytoma is a perivascular tumor of the skin and subcutaneous tissue of the extremities, it is a rare finding in the head and neck, and even rarer is its deep location.

METHODS: A 38-year-old woman presented with a slowly growing mass at the right carotid triangle. Contrast-enhanced CT scan revealed a moderately enhancing mass. At surgery, the tumor was firmly attached to the common carotid artery, making it necessary to excise a small portion of the vessel wall.

RESULTS: The histopathologic report was myopericytoma. The postoperative course was uneventful, without tumor recurrence.

CONCLUSION: The very few deep located myopericytomas at the head and neck region show a predilection to appear near the great neck vessels with a possibility to require vascular repair, or at the parotid space where they can be multicentric. © 2016 Wiley Periodicals, Inc. Head Neck 38: E2479-E2482, 2016.