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Large solitary fibrous tumor of the retroperitoneum: report of a case.

Authors
  • Kunieda, Katsuyuki
  • Tanaka, Yoshihiro
  • Nagao, Narutoshi
  • Yamaguchi, Kazuya
  • Sano, Jun
  • Osada, Shinji
  • Saji, Shigetoyo
  • Shimokawa, Kuniyasu
Type
Published Article
Journal
Surgery today
Publication Date
Jan 01, 2004
Volume
34
Issue
1
Pages
90–93
Identifiers
PMID: 14714239
Source
Medline
License
Unknown

Abstract

We report an unusual case of a large solitary fibrous tumor (SFT) in the retroperitoneum. A 53-year-old man was referred to our hospital for surgical treatment of a swelling in the right flank with dull pain. Abdominal computed tomography (CT) and echograms showed a large encapsulated tumor compressing the right kidney and liver. At laparotomy, the tumor was found to be encapsulated but fixed to the capsule of the right kidney within a small area. Therefore, complete removal was achieved. The resected specimen was an encapsulated elastic hard tumor, 14 x 13 x 10 cm in size. Immunohistochemical studies revealed reactivity for CD34 and vimentin, but no staining for keratin, S-100, or alpha-smooth muscle actin, confirming a diagnosis of SFT. Although SFT is usually associated with a favorable prognosis, close follow-up is recommended because of the limited information on its long-term behavior.

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