Inguinal Solitary Fibrous Tumor: A Case Report

Abstract

Introduction: A solitary fibrous tumor (SFT) is a rare mesenchymal neoplasm that may occur in a wide range of sites, more commonly in the pleura. We report a well-documented case of an SFT with malignant histology arising in the inguinal region. Case Presentation: A 59-year-old man, with an unremarkable medical history, presented with a slow-growing painless mass in the left side of the inguinal region, which he had ignored for 3 years. On clinical examination, there was an indurated, irreducible, mobile, and painless mass in the left side of the inguinal area. Magnetic resonance imaging and computed tomography results revealed a 15-cm mass made up of soft tissue and with nonspecific radiologic aspect. The tumor was totally excised, and the results of the pathologic examination concluded it was an SFT. Discussion: The aim of our case report is to present a rare extrapleural localization of an SFT. Although its radiologic features are not specific, SFT should be considered in the differential diagnosis of inguinal masses.