transanal endoscopic microsurgery
Also written as: TEM — Transanal Endoscopic Microsurgery
Minimally invasive technique for precise excision of rectal lesions using specialized endoscopic equipment inserted through the anus.
Full Definition
A sophisticated minimally invasive surgical approach for treating rectal neoplasms and other lesions located in the middle and upper rectum. The technique utilizes a specialized operating rectoscope with magnified optics, allowing for precise dissection and suturing under direct visualization. TEM enables full-thickness excision of rectal tumors while preserving anal sphincter function and avoiding the morbidity associated with traditional open rectal resection. The procedure requires specialized training and equipment but offers excellent oncological outcomes for appropriate lesions.
Usage
Usage note: TEM is acceptable abbreviation after first use; specify tumor location and histology.
In Context
- "The patient underwent transanal endoscopic microsurgery for a T1 rectal adenoma." — Operative report
- "Transanal endoscopic microsurgery achieved complete R0 resection with negative margins." — Pathology correlation note