Transanal Minimally Invasive Surgery (TAMIS) in Glendale & Los Angeles
Transanal minimally invasive surgery (TAMIS) allows a surgeon to remove certain polyps or early-stage rectal tumors by working entirely through the anus, using a specialized port and instruments, without any external incisions. It’s an option for appropriately selected lesions that can’t be removed during a routine colonoscopy but don’t require a full, more extensive rectal resection.
Treatment Approach
- Candidacy depends on the size, depth, and location of the lesion, determined through imaging and biopsy beforehand
- Generally involves a shorter recovery than a full rectal resection
- Specimens are sent for pathology to confirm margins are clear and guide any further treatment
A Note Worth Reading
TAMIS is appropriate for a specific subset of rectal lesions — not every polyp or tumor is a candidate. An evaluation with imaging and biopsy results determines whether it fits a given case.
Related Questions
What happens at a first consultation?
A first visit typically includes a review of your symptoms and medical history, relevant prior test results (bring colonoscopy reports, imaging, or pathology if you have them), and a focused physical exam when appropriate. From there, the surgeon will explain what’s likely going on, what (if any) additional testing is needed, and the range of treatment options — from conservative management to procedures or surgery — so you can make an informed decision together.
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This page is general health information, not medical advice, and does not create a doctor-patient relationship. It is not a substitute for an in-person evaluation. If you are experiencing a medical emergency, call 911.
Discuss Transanal Minimally Invasive Surgery With Dr. Gregorian
Call the office or send a message to request an appointment with Dr. Armen Gregorian, MD, FACS, FASCRS.