A Rare Case of Fat-Forming Variant of Solitary Fibrous Tumor Presenting as a Pleural Mass.

Kim, Mi Ae; Lee, Ji Hyun; Jeong, Hye Cheol; Koo, Seung Won; Park, Kyung Mi; Cho, Sang Ho; Lee, Hyeon Jae; Kim, Eun Kyung

doi:2011.70.6.511

Tuberc Respir Dis > Volume 70(6); 2011 > Article

Case Report

Tuberculosis and Respiratory Diseases 2011;70(6):511-515.
DOI: https://doi.org/10.4046/trd.2011.70.6.511 Published online June 1, 2011.

A Rare Case of Fat-Forming Variant of Solitary Fibrous Tumor Presenting as a Pleural Mass.

Mi Ae Kim, Ji Hyun Lee, Hye Cheol Jeong, Seung Won Koo, Kyung Mi Park, Sang Ho Cho, Hyeon Jae Lee, Eun Kyung Kim

¹Department of Internal Medicine, Bundang CHA Hospital, CHA University College of Medicine, Seongnam, Korea. imekkim@hanmail.net
²Department of Pathology, Bundang CHA Hospital, CHA University College of Medicine, Seongnam, Korea.
³Department of Thoracic and Cardiovascular Surgery, Bundang CHA Hospital, CHA University College of Medicine, Seongnam, Korea.

Abstract

The fat-forming variant of solitary fibrous tumors (SFTs) is a rare soft tissue neoplasm that was previously referred to as a lipomatous hemangiopericytoma (L-HPC). The most common affected site is deep soft tissue. Here, we present the first case, worldwide, of a fat-forming variant of SFT of the pleura. A 74-year-old man presented with left lower chest pain. Chest radiographs showed a mass-like lesion at the left lower lung field and chest computed tomography revealed a 12 cm fat-containing enhancing mass that was well-separated, lobulated and inhomogeneous. Radiology findings suggested a liposarcoma. Percutaneous needle biopsy was performed and pathological diagnosis of the mass was a fat-forming variant of SFT. Surgical resection was carried out and there has been no recurrence to date. So, a benign fat-forming variant of SFT must be considered as one of the differential diagnoses of lipomatous tumors of the pleura.

Key Words: Solitary Fibrous Tumors, Pleura, Lipoma