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Transvaginal excision of rectal stromal tumors: case reports and a literature review
Wang Shizhuo1, Liuyuan2, Ni Sha1
1Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, 36 San Hao Street, Heping District, Shenyang, 110004, Liaoning, China.
Background:
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. Rectal locations are very rare, and minimally invasive surgery is a good choice for the treatment of rectal GISTs.
Case Presentation:
Two women each had a mass located on the lower vaginal-rectal space as determined by transvaginal ultrasound (TV-US), pelvis MR imaging, and colonoscopy. The patients successfully underwent transvaginal excision. The spindle-shaped cells were found in pathological test. The immunohistochemical analysis showed that CD117 and Dog-1 were stained positively. These results confirmed the masses as GISTs. The postoperative period was uneventful without anal dysfunction. Two patients were received adjuvant treatment with imatinib after surgery.
Conclusion:
Transvaginal excision could be a minimally invasive and safe alternative treatment in the management of rectal GISTs in lower locations.
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