Accuracy of transrectal ultrasonography in staging rectal tumors that are clinically eligible for transanal endoscopic microsurgery

Abstract

TRUS is accurate in distinguishing rectal lesions suitable for TEM from the lesions needing more radical surgery. If TRUS is nondiagnostic or the lesion is of high stage (>or=T2), MRI should be performed.

Transanal Endoscopic Surgery With Total Wall Excision Is Required With Rectal Adenomas due to the High Frequency of Adenocarcinoma

“…Previous studies indicate that tumors below t2 are staged more accurately with eus than with mRi. 28,29 We also know that in large adenovillous lesions, the air between the villi creates an artifact that prevents proper staging. as a result, our therapeutic strategy is to perform a fullthickness excision in all tumors in which local surgery is indicated.…”

“…9 eus staging identifies lesions invading beyond the submucosa (t1) and thus provides highly important information prior to surgery. 28,32 Preoperative eus stage ut2-t3 is predictive of malignancy risk with an oR of 3.8. however, the eus data shown in table 5, which is consistent with those published by García-aguilar, 33 cannot guide a decision regarding the definitive pathology result. for that reason, our first treatment option is local excision using tem, which our results indicate will constitute definitive treatment in around half of the cases.…”

Experience of minimally invasive treatment for early rectal cancer

“…В то же время ряд исследователей приводят в своих работах результаты гипердиагностики при ЭРУЗИ [2,3,6,7].…”

Transanal minimally-invasive surgery (TAMIS): Technique and results from an initial experience

“…Average tumor size was 3.8 (1.8-8) cm. Mean distance from anal verge was 6.3 (3)(4)(5)(6)(7)(8)(9)(10)(11)(12) cm. Mean operating time was 53.73 (28-118) min.…”

“…Mean age was 62.9 (40-86). Mean follow-up was 9.3 (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17) months. Average tumor size was 3.8 (1.8-8) cm.…”