Sigmoid Leiomyoma: An Uncommon Occurrence

Forlemu, Arnold; Chuang, Keng–Yu

doi:10.7759/cureus.7567

Cited by 6 publications

(14 citation statements)

References 6 publications

(12 reference statements)

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“…Colonic leiomyomas are very rare, accounting for only 3% GI smooth muscle tumors, and usually located in the descending or sigmoid colon [3][4][5][6]. However, polypoid leiomyomas in the colon and rectum are increasingly detected during colonoscopy [7].…”

Section: Discussionmentioning

confidence: 99%

An Asymptomatic Patient with Colonic Leiomyoma

Alkhowaiter,

Alsheikh,

Alotaibi

2023

Case Rep Gastroenterol

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Subepithelial lesions (SELs) originating from muscularis mucosae of the colon are very rare findings on endoscopy. Appropriate management of SELs involves making a correct diagnosis and estimating their malignant potential. In this case study, a 58-year-old Saudi man presented with a small, 8-mm sigmoid polyp during screening colonoscopy. The polyp was removed by hot snare polypectomy and sent to pathology laboratory. Report showed an unremarkable colonic mucosa and underlying well-circumscribed submucosal lesion composed of monotonous spindle cells. Immunohistochemical (IHC) analysis ruled out CD117-/DOG1-positive GIST and confirmed the lesion as leiomyomatous polyp. Colonic leiomyomas are usually benign and often asymptomatic and discovered during CRC screening procedures. Diagnosis is made on histology/IHC analysis since endoscopically they might be indistinguishable from other SELs. Conventional polypectomy is an appropriate treatment for small colonic leiomyoma and these benign lesions typically do not recur.

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Section: Discussionmentioning

confidence: 99%

An Asymptomatic Patient with Colonic Leiomyoma

Alkhowaiter,

Alsheikh,

Alotaibi

2023

Case Rep Gastroenterol

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“…To avoid the risk of perforation in endoscopic removal, lesions are usually lifted with the submucosal injection technique. A positive lifting sign indicates that the tumor can be completely resected endoscopically, whereas a non-lifting sign indicates that the tumor is deeper and this therapy is contraindicated [6,4]. Surgical resection is recommended in tumors with suspected malignancy, in addition to patients with failed endoscopic closure or delayed recognition of perforation [6].…”

Section: Discussionmentioning

confidence: 99%

“…These tumors occur especially in men and in individuals over the age of 50 [1]. They have an excellent prognosis and have the tendency to not recur after removal [4].…”

Section: Introductionmentioning

confidence: 99%

Underwater Mucosectomy to Treat Colon Mesenchymal Leiomyoma Lesion - a Rare Case Report

Guedes

Viana

Vieira

et al. 2022

Preprint

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Introduction: Leiomyomas are rare on the colon and represent only 3% of cases. They are frequently asymptomatic and are often found accidentally during colonoscopic examination. Colonic leiomyomas have an excellent prognosis and do not tend to recur after removal.Case: We report a rare case of submucosal leiomyoma, in the colon, diagnosed during a routine colonoscopy and resected by underwater mucosectomy.Conclusion: Although rare, colonic leiomyomas are a differential diagnosis for pre-cancerous epithelial lesions and should be considered when a polyp is found. In this case report we present what is likely the first case to be successfully resected through underwater mucosectomy.

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“…Intraluminal leiomyomas have been also described in the small intestine. Upon removal with snare polypectomy and histologic evaluation, they manifest as small nodular round masses derived from smooth muscle tissue appearing to originate from the muscularis mucosae or the muscularis propria layer of the intestinal wall [ 13 , 14 ]. These leiomyomas are benign and they represent a distinct entity from the gastrointestinal stromal tumors (GISTs) [ 13 ].…”

Section: Discussionmentioning

confidence: 99%