Transanal Excision / TAMIS / TEM
Minimally invasive transanal techniques for larger rectal polyps and early rectal tumours - excellent direct access and en-bloc complete specimen excision through the anal canal with no abdominal incisions.
What is Transanal Excision / TAMIS / TEM?
Transanal Minimally Invasive Surgery (TAMIS) and Transanal Endoscopic Microsurgery (TEM) are advanced surgical techniques for removing larger polyps, adenomas, and early rectal tumours (T1) through the anal canal without any abdominal incisions. A specialised port is introduced transanally, providing laparoscopic-quality visualisation and instrument access to the entire rectum. Dr. Samhitha Reddy offers TAMIS at Lux Hospitals, Hyderabad for rectal polyps too large for endoscopic removal, sessile adenomas, and selected early rectal cancers. As part of the best polypectomy doctor in Hyderabad programme, the technique allows en-bloc full-thickness excision with clear margins - the optimal oncological specimen. It is one of the most advanced minimally invasive polypectomy techniques available in Hyderabad.
How the Procedure Works
Pre-operative Assessment
MRI pelvis confirms polyp or tumour depth (T staging), absence of lymph node involvement, and maps lesion location relative to the anal verge.
TAMIS Platform Insertion
The TAMIS port (GelPOINT Path or similar) is inserted transanally. CO2 insufflation distends the rectum to create an excellent working space.
Lesion Identification & Marking
The lesion is identified under direct laparoscopic vision. Electrocautery marks the planned excision margin 1 cm around the lesion.
Full-Thickness Excision
Using laparoscopic instruments, the lesion is excised en-bloc with a full-thickness disc of rectal wall - achieving wide, clear margins.
Defect Closure
The rectal wall defect is closed transversally with absorbable sutures. The specimen is pinned, oriented, and sent for histological assessment.
Outcomes
Who Needs This Treatment?
- →No abdominal incisions - all surgery performed through the anal canal
- →En-bloc full-thickness excision - superior specimen for margin assessment
- →Excellent access to the entire rectum, including polyps up to 20 cm from the anal verge
- →Significantly less morbidity than formal rectal resection for appropriately selected lesions
- →Short hospital stay - day-care for small lesions, 1-2 days for larger excisions
- →Available at Lux Hospitals, Hyderabad as part of the comprehensive colorectal surgery programme
TAMIS represents a quantum leap in our ability to treat rectal polyps and early cancers through a natural orifice. The visualisation is superb, the dissection is precise, and patients avoid a major abdominal operation entirely - the recovery is a fraction of what was previously required.
— - Dr. Samhitha Reddy, Consultant Proctologist & Laparoscopic Surgeon
Common Questions
Frequently Asked
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