Giant solitary fibrous tumor of the mesentery: A rare case

Solitary fibrous tumours (SFTs) are rare tumours arising from mesenchymal tissues. Despite of their more frequent occurrence in the pleura, SFT can present anywhere in the body. Only a few cases have been described arising from the mesentery. Most tumours have a benign nature; however, up to 20% of them can spread, most commonly to liver, lung and bone. Surgical excision including all surrounding tissues remains the treatment of choice; however, there is no consensus regarding the need for adjuvant therapies. We present a 79-year-old man with abdominal pain who was found to have a SFT in the mesentery of the sigmoid colon, treated with en bloc resection. A multidisciplinary team including surgeons, medical and radiation oncologists is recommended in the care of these patients.

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Solitary fibrous tumour of the sigmoid colon mesentery

Mekel¹,

Balshan

Traupman

2019

BMJ Case Rep

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Solitary fibrous tumor of the mesentery: a case report and review of the literature

Liu

et al. 2020

J Int Med Res

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Solitary fibrous tumors are rare mesenchymal tumors that typically arise from the pleura and rarely originate from the mesentery. We herein report a case involving a 66-year-old patient who presented with a mass on the left abdomen. This mass had been incidentally noticed 10 years earlier. The patient sometimes experienced abdominal pain. Physical examination revealed an irregular mass, which was resected. A biopsy of the mass revealed that it was a solitary fibrous tumor originating from the mesentery of the small intestine. The patient was discharged 1 week after surgery and had an uneventful clinical course throughout the 4-month postoperative follow-up.

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A giant solitary fibrous tumor of the mesentery: a case report and literature review

et al. 2015

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We report on an extremely rare case of a giant solitary fibrous tumor (SFT) of the mesentery in a 65-year-old male who was admitted to our hospital because of lower abdominal pain and abdominal fullness. Computed tomography demonstrated a well-defined solid mass of 25 × 11 cm located in the lower abdomen, which was completely resected during surgery. Histopathologically, this lesion had a heterogeneous cell population, mainly comprising spindle cells with fibrous collagen proliferation, and various other cell populations exhibiting patternless growth. Immunohistochemically, the tumor revealed strong and diffuse staining for CD34, bcl-2, and vimentin, and a high mitotic index (seven mitoses per 10 high-power fields). We diagnosed this case as an SFT of the mesentery, which is unusual according to a PubMed search that reported only nine such cases. Our case may be the largest tumor reported to date, and only one retrieved case reported recurrence, although the lesion was exceptionally large with deep invasion. Nonetheless, the lesion in our case was larger than that in the reported case of recurrence and invasive to the ileum. Since surgery, there has been no evidence of recurrence. Hence, we propose that a large SFT and high mitotic index may present risk factors for recurrence. Therefore, long-term careful follow-up is necessary in such cases, although our case exhibited few risk factors for recurrence. A follow-up at 12 months after surgery found no indications of recurrence.

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Giant solitary fibrous tumor of the mesentery: A rare case

Cited by 6 publications

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Solitary fibrous tumour of the sigmoid colon mesentery

Solitary fibrous tumour of the sigmoid colon mesentery

Solitary fibrous tumor of the mesentery: a case report and review of the literature

A giant solitary fibrous tumor of the mesentery: a case report and literature review

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