Presentation
Presents with history of hematuria and hyperthyroidism. Intermittent vomiting, significant weight loss over the last year.
Patient Data
The right kidney is markedly enlarged, with a rounded shape. It is distorting the abdominal wall on the v/d projection and displacing the ascending and transverse colon medially and ventrally. The left kidney also has an abnormal shape, with reduced length and increased width.
There is also spondylosis deformans at the L5-6 intervertebral disc space, which is an incidental finding.
Bilateral renomegaly. Perinephric pseudocysts and chronic renal change.
On abdominal ultrasound, both kidneys were surrounded by cysts between the renal parenchyma and capsule. Some strands of tissue connected the renal tissue to the capsule. The pseudocyst on the right is greater than the left.
Case Discussion
Differential diagnoses for renomegaly include:
Perinephric pseudocysts
Hydronephrosis
Chronic renal disease
Subcapsular hematoma
Lymphosarcoma
Perinephric pseudocysts are associated with chronic renal disease, but are often asymptomatic. They often cause marked enlargement of the renal silhouette, more so than other disorders. The association between the pseudocysts and this cat's hematuria is unclear. The hematuria may have been due to pressure from the pseudocysts, or idiopathic in nature.
Unable to process the form. Check for errors and try again.