Imaging of a cat with perirenal pseudocysts

A 16-year-old, neutered male, domestic short hair cat had abdominal distens ion and systemic hypertension. Radiography, ultrasonography, excretory urog raphy, and renal scintigraphy were performed to establish the diagnosis and implement appropriate treatment, Bilateral perirenal pseudocysts were conf irmed surgically and histopathologically. Bellowing bilateral renal capsule ctomy, systemic hypertension decreased and global glomerular filtration rat e improved to normal limits. Multiple imaging modalities helped establish t he diagnosis and guided implementation of appropriate treatment.