A solitary fibrous tumor arising in the parapharyngeal space, with MRI and FDG-PET findings

• Wakisaka Naohiro

• Kondo Satoru

• Murono Shigeyuki

• Minato Hiroshi

• Furukawa Mitsuru

• Yoshizaki Tomokazu

Abstract

金沢大学医薬保健研究域医学系We present the imaging and pathological features of a 38-year-old man in whom a large parapharyngeal solitary fibrous tumor (SFT) on the left side was found. On MRI, the tumor showed a nodule-in-nodule appearance. The inner nodule revealed high signal intensities both on T1- and T2-weighted MR images. The entire tumor showed heterogeneous enhancement on gadolinium-enhanced T1-weighted images. 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) identified heterogeneous radiotracer uptake of FDG in the inner nodule of the tumor. Histologic examinations revealed an admixture of growth patterns, including a "patternless pattern" and "haemangiopericytoma-like pattern". The tumor was positive for CD34. Imaging features of SFT arising in the parapharyngeal space are discussed with a review of literatures. This is the first report of FDG-PET finding of SFT arising in the head and neck. More cases are needed to achieve diagnostic significance from FDG-PET findings of parapharyngeal SFTs. © 2008 Elsevier Ireland Ltd. All rights reserved.

Journal

• Auris Nasus Larynx

  Auris Nasus Larynx 36 (3), 367-371, 2009-06-01

  Elsevier

Keywords

• FDG-PET
• MRI
• Parapharyngeal space
• Solitary fibrous tumor

Details

• CRID: 1572261552406124288
• NII Article ID: 120001342300
• NII Book ID: AA00061157
• ISSN: 03858146
• Web Site: http://hdl.handle.net/2297/17608
• Text Lang: en
• Data Source:
  • CiNii Articles