Infant with complications from an umbilical venous catheter placed 6 months ago Pediatric Imaging Genitourinary January 19, 2023November 16, 2022 Sagittal US of the kidneys shows a small shrunken left kidney and an enlarged right kidney due to compensatory hypertrophy. The diagnosis was left renal atrophy secondary to remote left renal vein thrombosis. Related Published January 19, 2023November 16, 2022