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Case Report
1 Department of General Surgery, CHEDV – São Sebastião Hospital, Santa Maria da Feira, Portugal
Address correspondence to:
Lúcia Carvalho
5 Doutor Cândido Pinho Street, 4520-211, Santa Maria da Feira,
Portugal
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Article ID: 101210Z01LC2021
Introduction: Solitary fibrous tumor is a rare neoplasm of mesenchymal origin that typically arises from pleura. Mesentery origin is an extremely rare presentation. Although benign in most cases, surgery with en bloc resection of the tumor is the treatment modality due to the possibility of malignancy and allows a final histopathological and immunohistochemical diagnosis.
Case Report: We report a case of a giant solitary fibrous tumor of the mesentery of the small intestine in a 74-year-old patient who was referred to our hospital for an intermittent and vague abdominal pain. Physical examination revealed a dolorous and immobile mass palpable on right lower quadrant which was initially thought to be a gastrointestinal stromal tumor (GIST). The mass was successfully resected and the diagnosis of a solitary fibrous tumor was confirmed on immunohistochemical analysis. The patient was discharged 4 days after surgery and had an uneventful clinical course throughout the 12-month postoperative follow-up.
Conclusion: We present an uncommon localization of a solitary fibrous tumor, arising from the small bowel mesentery and with a large dimension. Since solitary fibrous tumor may show aggressive behavior with frequent local recurrence, careful long-term follow-up has been recommended for the rare cases of extrapleural solitary fibrous tumor.
Keywords: Abdominal mass, Mesenchymal tumor, Small bowel mesentery, Solitary fibrous tumor
Lúcia Carvalho - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Final approval of the version to be published
Leonor Matos - Substantial contributions to conception and design, Revising it critically for important intellectual content, Final approval of the version to be published
Ana Marta Pereira - Analysis of data, Interpretation of data, Revising it critically for important intellectual content, Final approval of the version to be published
Rui Ferreira Almeida - Analysis of data, Revising it critically for important intellectual content, Final approval of the version to be published
Artur Trovão Lima - Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Mário Nora - Interpretation of data, Revising it critically for important intellectual content, Final approval of the version to be published
Guaranter of SubmissionThe corresponding author is the guarantor of submission.
Source of SupportNone
Consent StatementWritten informed consent was obtained from the patient for publication of this article.
Data AvailabilityAll relevant data are within the paper and its Supporting Information files.
Conflict of InterestAuthors declare no conflict of interest.
Copyright© 2021 Lúcia Carvalho et al. This article is distributed under the terms of Creative Commons Attribution License which permits unrestricted use, distribution and reproduction in any medium provided the original author(s) and original publisher are properly credited. Please see the copyright policy on the journal website for more information.