Kunieda Katsuyuki, Tanaka Yoshihiro, Nagao Narutoshi, Yamaguchi Kazuya, Sano Jun, Osada Shinji, Saji Shigetoyo, Shimokawa Kuniyasu
Second Department of Surgery, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu 502-8705, Japan.
Surg Today. 2004;34(1):90-3. doi: 10.1007/s00595-003-2632-1.
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.
我们报告一例罕见的腹膜后巨大孤立性纤维瘤（SFT）病例。一名53岁男性因右侧腰部肿胀伴钝痛被转诊至我院接受手术治疗。腹部计算机断层扫描（CT）和超声检查显示一个巨大的包膜完整的肿瘤，压迫右肾和肝脏。剖腹手术时，发现肿瘤包膜完整，但在小范围内与右肾包膜粘连。因此，肿瘤得以完整切除。切除的标本是一个包膜完整的弹性硬瘤，大小为14×13×10 cm。免疫组织化学研究显示CD34和波形蛋白呈阳性反应，但角蛋白、S-100或α-平滑肌肌动蛋白无染色，确诊为SFT。尽管SFT通常预后良好，但由于其长期行为的信息有限，建议密切随访。
