Intermediate Technical IVT

gross total resection

Also written as: GTR — Gross Total Resection

Complete surgical removal of visible tumor tissue, a key prognostic factor requiring precise editorial distinction from subtotal resection.

Full Definition

Gross total resection (GTR) refers to the complete surgical removal of all visible tumor tissue as assessed by the operating surgeon and confirmed by immediate postoperative imaging. In neuro-oncology, the extent of resection is a critical prognostic factor, and editors must understand the distinction between GTR, near-total resection, and subtotal resection. The terminology has significant implications for patient outcomes and treatment planning, requiring careful attention to surgical reports and radiographic confirmation of resection extent.

Usage

Usage note: Always specify method of confirmation (surgical assessment vs. imaging); distinguish from 'complete resection' which may imply microscopic clearance.

In Context

"Gross total resection was achieved in 78% of patients with favorable tumor location." — Surgical outcomes study
"The surgeon reported gross total resection, confirmed by postoperative MRI within 48 hours." — Clinical documentation

Also known as

GTR complete resection total resection

Contrasted with

subtotal resection partial resection biopsy only

Don't confuse with

near-total resection subtotal resection maximal safe resection

gliomatosis cerebri ← Back to glossary hydrocephalus