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Case Reports
. 2023 Jul 21;15(7):e42235.
doi: 10.7759/cureus.42235. eCollection 2023 Jul.

Solitary Fibrous Tumor of the Shoulder Metastasizing to the Small Intestine Presenting as Intussusception: A Case Report

Hasan Arafat  1 , Amer Zughayyar  1
Affiliations
Case Reports

Solitary Fibrous Tumor of the Shoulder Metastasizing to the Small Intestine Presenting as Intussusception: A Case Report

Hasan Arafat et al. Cureus. .

Abstract

Solitary fibrous tumors (SFTs) are rare vascular malignancies that are rarely reported in the upper limb, and even rarer as secondary metastasis to the small bowel. We present a case of a 39-year-old male patient, a known case of metastatic SFT, presenting with severe abdominal pain and vomiting. Computed tomography showed ileo-ileal intussusception. Subsequently, he underwent surgical resection. Histopathological examination showed high-grade sarcoma of the intestinal wall, confirming small intestinal metastasis. This constitutes one of the rare cases of SFTs metastasizing to the small bowel, specifically to the ileum. A review of the literature on similar cases is presented. There appears to be a connection between upper limb SFT and bowel metastasis according to reported literature. However, the scarcity of similar reports makes the generalizability of the conclusion limited.

Keywords: ileo-ileal intussusception; malignancy; rare tumors; rare vascular tumor; solitary fibrous tumor; solitary fibrous tumor (sft).

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Axial view of PET/CT done on May 2020. White arrows point to multiple lung nodules representing metastasis.
PET/CT: positron emission tomography/computed tomography.
Figure 2
Figure 2. Axial contrast-enhanced CT image obtained at presentation with abdominal pain, showing evidence of target-like appearance in the subhepatic short segment of the small bowel measuring about 2.7 cm indicating small bowel intussusception.
Figure 3
Figure 3. H&E stain of the malignant solitary fibrous tumor excised from the site of ileo-ileal intussusception. (A) 10x magnification of the excised tumor, which demonstrates the involvement of the intestinal wall with the tumor. There is ulceration from tumor invasion, pointed at by the double arrow. The white arrow points at the normal intestinal lumen. (B) H&E stain 20x magnification shows spindle cells with moderate-to-severe nuclear atypia and brisk mitotic figures.
H&E: hematoxylin and eosin.
See this image and copyright information in PMC

References

    1. Surveillance for metastatic hemangiopericytoma-solitary fibrous tumors-systematic literature review on incidence, predictors and diagnosis of extra-cranial disease. Ratneswaren T, Hogg FR, Gallagher MJ, Ashkan K. J Neurooncol. 2018;138:447–467. - PubMed
    1. A solitary fibrous tumor of the upper limb. Al-Shanawani BN, Al-Qattan MM, Arafah MM, Al-Motairi MI. Saudi Med J. 2015;36:236–238. - PMC - PubMed
    1. Efficacy and safety of pazopanib for recurrent or metastatic solitary fibrous tumor. Ebata T, Shimoi T, Bun S, et al. Oncology. 2018;94:340–344. - PubMed
    1. Solitary fibrous tumor of bone developing lung metastases on long-term follow-up. Jia C, Crim J, Evenski A, Layfield LJ. Skeletal Radiol. 2020;49:1865–1871. - PubMed
    1. Extra-thoracic, extra-meningeal solitary fibrous tumours - a case series and service review. Silverwood R, Jayasankar V, Mahendra A, Gupta S, MacDuff E. https://doi.org/10.1016/j.jcot.2021.101675. J Clin Orthop Trauma. 2022;24:101675. - PMC - PubMed

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