Retroperitoneal solitary fibrous tumor of the pelvis with pollakiuria: a case report

BMC Research Notes

Hiromi Ohnishi¹  Naobumi Tomozawa¹  Takaharu Yagi¹  Takaaki Tsushimi¹ 

[1] Department of Surgery and Department of Pathology, Ehime Rosai Hospital, Minamikomatsubara-cho 13-27, Niihama, Ehime, 792-8550, Japan

关键词: Pollakiuria;    Solitary fibrous tumor;    Pelvis;   

Others  :  1165375
DOI  :  10.1186/1756-0500-5-593

 received in 2012-09-18, accepted in 2012-10-19,  发布年份 2012

【 摘 要 】

Background

Solitary fibrous tumor (SFT) is rare soft tissue tumor, and it occurs most commonly in the pleura. Retroperitoneal SFT is generally found by palpable mass or abdominal distention. Here we report a case of SFT presenting pollakiuria.

Case presentation

A 64-year-old man was referred to our hospital for pollakiuria. Contrasted-enhanced computed tomography revealed a heterogeneously enhanced pelvic tumor of approximately 10 × 8 × 7 cm. Invasion of the surrounding organs, distal metastasis, and lymph node swelling were absent. Therefore, surgical resection was performed. The resected specimen was a 13 × 8 × 5.5-cm encapsulated elastic hard tumor weighing 420 g. Histologically, the tumor consisted of oval or spindle cells growing in a random manner in a collagenous matrix. Immunohistochemically, the specimen was positive for CD34, bcl-2, as well as vimentin and negative for c-kit. On the basis of these findings, a retroperitoneal solitary fibrous tumor (SFT) of the pelvis was diagnosed.

Conclusion

Surgery is the primary treatment for SFT, and pathologically negative margins are important for good prognosis.

【 授权许可】

   
2012 Tsushimi et al.; licensee BioMed Central Ltd.

【 图 表 】

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【 参考文献 】

• [1]Klemperer P, Rabin CB: Primary neoplasm of the pleura: a report of five cases. Arch Pathol 1931, 11:385-412.
• [2]Gomi K, Shimada K, Kajikawa S, Yazawa K, Shirota H, Nakamura T: A case of solitary fibrous tumor located in the retroperitoneum (in Japanese with English abstract). J Jpn Surg Assoc 2009, 70:2833-2838.
• [3]Dorfman DM, To K, Dickersin GR, Rosenberg AE, Pilch BZ: Solitary fibrous tumor of the orbit. Am J Surg Pathol 1994, 18:281-287.
• [4]Wang C, Manucha V, Faro S, Weaver M, Mukherjee AL: Fourth ventricular solitary fibrous tumor: a case report and review of the literature. J Med Case Rep 2012, 17(6):205.
• [5]Tambo M, Fujimoto K, Miyake M, Hoshiyama F, Matsushita C, Hirao Y: Clinicopathological review of 46 primary retroperitoneal tumors. Int J Urol 2007, 14:785-8.
• [6]Schirosi L, Lantuejoul S, Cavazza A, Murer B, Yves Brichon P, Migaldi M, Sartori G, Sgambato A, Rossi G: Pleuro-pulmonary solitary fibrous tumors: a clinicopathologic, immunohistochemical, and molecular study of 88 cases confirming the prognostic value of de Perrot staging system and p53 expression, and evaluating the role of c-kit, BRAF, PDGFRs (alpha/beta), c-met, and EGFR. Am J Surg Pathol 2008, 32:1627-1642.
• [7]Gold JS, Antonescu CR, Hajdu C, Ferrone CR, Hussain M, Lewis JJ, Brennan MF, Coit DG: Clinicopathologic correlates of solitary fibrous tumors. Cancer 2002, 94:1057-1068.
• [8]Kubota Y, Kawai N, Tozawa K, Hayashi Y, Sasaki S, Kohri K: Solitary fibrous tumor of the peritoneum found in the prevesical space. Urol Int 2000, 65:53-56.
• [9]Sano T, Nishiyama H, Kanematsu A, Takahashi T, Nakamura E, Kamoto T, Mikami Y, Koyama T, Ogawa O: Solitary fibrous tumor in the pelvic space: a case report. Hinyokika Kiyo 2007, 53:897-901.
• [10]Fletcher CDM, Unni K, Meryens F: World Health Organization classification of tumors, pathology and genetics, tumors of soft tissue and bone. Lyon: IARC Press; 2002:86-88.
• [11]England DM, Hochholzer L, McCarthy MJ: Localized benign and malignant fibrous tumors of the pleura. A clinicopathologic review of 223 cases. Am J Surg Pathol 1989, 13:640-658.
• [12]Vallat-Decouvelaere AV, Dry SM, Fletcher CD: Atypical and malignant solitary fibrous tumors in extrathoracic locations: evidence of their comparability to intra-thoratic tumors. Am J Surg Pathol 1998, 22:1501-1511.
• [13]Takizawa I, Saito T, Kitamura Y, Arai K, Kawaguchi M, Takahashi K, Hara N: Primary solitary fibrous tumor (SFT) in the retroperitoneum. Urol Oncol 2008, 26:254-259.
• [14]Yokoi T, Tsuzuki T, Yatabe Y, Suzuki M, Kurumaya H, Koshikawa T, Kuhara H, Kuroda M, Nakamura N, Nakatani Y, Kakudo K: Solitary fibrous tumor: significance of p53 and CD34 immunoreactivity in its malignant transformation. Histopathology 1998, 32:423-432.
• [15]Yoshida R, Takada H, Iwamoto S, Uedono Y, Kawanishi H, Yoshioka K, Nakane Y, Hioki K, Sakaida N, Okamura A: A solitary fibrous tumor in the perianal region with a 13-year follow-up: report of a case. Surg Today 1999, 29:642-645.