Antopol-Goldman lesions are very rare presentations of subepithelial hemorrhage in the renal pelvis, presenting as discrete mass-like hematomas.
The cause of these lesions is uncertain, although long-term anticoagulation, non-steroidal anti-inflammatory drug (NSAID) overuse, trauma, and amyloidosis have been implicated.
Nonspecific mass-like lesion in the renal pelvis, with an attenuation greater than water (>10 HU). It does not enhance after administration of IV contrast.
The problem with Antopol-Goldman lesions is that their discrete appearance is likely to be confused with a renal neoplasm. Unfortunately, they are almost always diagnosed after nephrectomy.
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