biopsy-proven tumor
A brain tumor whose pathological diagnosis has been confirmed through tissue sampling. Used to distinguish from radiographically suspected lesions.
Full Definition
A brain tumor whose pathological diagnosis has been definitively established through histopathological examination of tissue obtained via biopsy or surgical resection. This terminology is crucial in neurosurgical documentation as it indicates that the tumor type is no longer speculative but has been confirmed through direct tissue analysis. The distinction is important for treatment planning, prognosis discussions, and medical-legal documentation, as many brain lesions may appear similar on imaging but require tissue confirmation for definitive diagnosis.
Usage
Usage note: Always hyphenate when used as a compound modifier before a noun.
In Context
- "The patient underwent stereotactic biopsy to obtain a biopsy-proven tumor diagnosis before initiating treatment." — Operative report
- "Insurance authorization was obtained based on the biopsy-proven tumor status rather than imaging findings alone." — Clinical documentation