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Bosniak and Renal Mass Tools

A cystic renal lesion, a solid mass being considered for partial nephrectomy, and a traumatised kidney are three different classifications. This page keeps them apart and links the vetting guide for an indeterminate mass.

Educational reference for qualified professionals. Confirm the result against the source cited on the tool page and against local protocol.

Cyst, mass, trauma

Pick the framework that matches the finding. A Bosniak category is not a nephrometry score, and neither grades traumatic injury.

Questions these pages get

Bosniak or nephrometry?

Bosniak is for cystic lesions. RENAL nephrometry describes a solid mass for surgical planning. Applying either score to the other finding is a category error, which is why they are separate calculators.

Other guides