Extraabdominal fibromatosis in retroperitoneal space
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Open Access
Case report
Extraabdominal fibromatosis in retroperitoneal space Akira Kikkawa1, Akira Kido*2,3, Tsukasa Kumai3 and Toru Hoshida2 Address: 1Department of Urology, Hannna Central Hospital, Nara, Japan, 2Divison of Orthopedics and Traumatology, Medical Center for Emergency and Critical Care, Nara Prefectural Nara Hospital, Nara, Japan and 3Department of Orthopedic Surgery, Nara Medical University, Nara, Japan Email: Akira Kikkawa - [email protected]; Akira Kido* - [email protected]; Tsukasa Kumai - [email protected]; Toru Hoshida - [email protected] * Corresponding author
Published: 03 October 2004 World Journal of Surgical Oncology 2004, 2:33
doi:10.1186/1477-7819-2-33
Received: 25 May 2004 Accepted: 03 October 2004
This article is available from: http://www.wjso.com/content/2/1/33 © 2004 Kikkawa et al; licensee BioMed Central Ltd. This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract Background: Fibromatosis or desmoid tumor covers a broad spectrum of benign fibrous tissue proliferations. It is characterized by infiltrative growth and a tendency towards recurrence; however, unlike sarcoma, it never metastasizes. Case presentation: We report on a case of extraabdominal fibromatosis originating from the retroperitoneal space in a 43-year-old woman. Seven years earlier she had undergone ureterolysis and ureteroureterostomy for ureteral obstruction. Computed tomography revealed a tumor between the iliocostalis and the psoas muscle. Histopathological evaluation revealed uniform proliferation of spindle cells, with a moderate amount of collagen fibers, suggesting extraabdominal fibromatosis (desmoid tumor). The tumor was surgically resected, and since then, the patient has remained asymptomatic without any restrictions of daily living activities and without any signs of tumor recurrence during the two-year follow-up. Conclusions: Complete resection is the treatment of choice. Adjuvant therapy using non steroidal anti-inflammatory agents, tamoxifen, interferon, anti-neoplastic agents, and radiotherapy, either alone or in combination finds application for unresectable or recurrent cases.
Background The term "fibromatosis" covers a broad spectrum of benign fibrous tissue proliferations, the biological behavior of which is similar to both benign fibrous lesions and fibrosarcoma. Like fibrosarcoma, fibromatosis is characterized by infiltrative growth and a tendency towards recurrence; however, unlike sarcoma, it never develops metastasis [1]. Therefore, the most important strategy is to prevent direct invasion into adjacent tissues. Extraabdominal fibromatosis principally originates from the connective tissue of muscles and the overlying fascia or aponeurosis. It may occur in a variety of anatomical locations, including the muscles of the shoulder, the chest
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