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Schwannoma of the colon and rectum: a systematic literature review

Overview of attention for article published in World Journal of Surgical Oncology, July 2018
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Title
Schwannoma of the colon and rectum: a systematic literature review
Published in
World Journal of Surgical Oncology, July 2018
DOI 10.1186/s12957-018-1427-1
Pubmed ID
Authors

Ali Bohlok, Melody El Khoury, Anne Bormans, Maria Gomez Galdon, Michael Vouche, Issam El Nakadi, Vincent Donckier, Gabriel Liberale

Abstract

Schwannomas of the colon and rectum are rare among gastrointestinal schwannomas. They are usually discovered incidentally as a submucosal mass on routine colonoscopy and diagnosed on pathologic examination of the operative specimen. Little information exists on the diagnosis and management of this rare entity. The aim of this study is to report a case of cecal schwannoma and the results of a systematic review of colorectal schwannoma in the literature. PubMed, Scopus, and Cochrane database searches were performed for case reports and case series of colonic and rectal schwannoma. Ninety-five patients with colonic or rectal schwannoma from 70 articles were included. Median age was 61.5 years (59% female). Presentation was asymptomatic (28%), rectorrhagia (23.2%), or abdominal pain (15.8%). Schwannoma occurred in the left and sigmoid colon in 36.8%, in the cecum and right colon in 30.5%, and in the rectum in 21.1%. Median tumor size was 3 cm and 56.2% of patients who underwent preoperative colonoscopy had a typical smooth submucosal mass. At pathology, 97.9, 13.7, and 5.3% of schwannomas stained positive for S100, vimentin, and GFAP, respectively. The median mitotic index was 1/50. Colorectal schwannoma is a very rare subtype of gastrointestinal schwannoma which occurs in the elderly, almost equally in men and women. Schwannoma should be included in the differential diagnosis of a submucosal lesion along with gastrointestinal stromal tumor, neuro-endocrine tumors, and leiomyoma-leiomyosarcoma. Definitive diagnosis is based on immunohistochemistry of the operative specimen. Rarely malignant, surgery is the mainstay of treatment.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 45 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 45 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 7 16%
Other 5 11%
Student > Doctoral Student 3 7%
Student > Ph. D. Student 3 7%
Student > Postgraduate 3 7%
Other 8 18%
Unknown 16 36%
Readers by discipline Count As %
Medicine and Dentistry 22 49%
Nursing and Health Professions 2 4%
Biochemistry, Genetics and Molecular Biology 1 2%
Physics and Astronomy 1 2%
Computer Science 1 2%
Other 2 4%
Unknown 16 36%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 July 2018.
All research outputs
#20,525,274
of 23,094,276 outputs
Outputs from World Journal of Surgical Oncology
#1,595
of 2,065 outputs
Outputs of similar age
#287,390
of 327,912 outputs
Outputs of similar age from World Journal of Surgical Oncology
#18
of 25 outputs
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