Solitary Fibrous Tumor of the Infratemporal Fossa

Authors

  • Monika E. Freiser
  • Johnathan E. Castaño
  • Elizabeth E. Whittington
  • David J. Arnold
  • Charif A. Sidani

DOI:

https://doi.org/10.3941/jrcr.v8i12.1742

Keywords:

Solitary fibrous tumor, infratemporal fossa tumor, fibrous tumor, soft tissue tumor, head and neck, retroantral fat, extrapleural, CT, MRI

Abstract

Solitary fibrous tumors represent fewer than 2% of all soft tissue tumors, and only about 12-15% of them occur in the head and neck. We report a case of a 38-year-old male who presented with a six-month history of increasing right cheek swelling. Computed tomography of the paranasal sinuses with contrast demonstrated a well-circumscribed avidly enhancing mass in the right retroantral fat. On magnetic resonance imaging the lesion was homogenously slightly hyperintense to muscle on T1 weighted and T2 weighted images and enhanced avidly with contrast. Surgical resection was performed and pathology was consistent with solitary fibrous tumor. There have been very few reported cases of solitary fibrous tumors in the infratemporal fossa and none described as originating in the retroantral fat.

Author Biographies

Monika E. Freiser

B.S.,  Medical Student

Johnathan E. Castaño

M.D., Resident, Department of Otolaryngology-Head and Neck Surgery

Elizabeth E. Whittington

M.D., Resident, Department of Pathology

David J. Arnold

M.D., Associate Professor, Department of Otolaryngology-Head and Neck Surgery

Charif A. Sidani

M.D., Assistant Professor, Department of Radiology

Published

2014-12-14

Issue

Section

Neuroradiology