A 15-year-old NM DSH with a history of hyperthyroidism, grade 2 heart murmur, and chronic upper respiratory tract disease was presented for evaluation of a palpable abdominal mass. Azotemia was present on serum biochemistry.
Case Study
06_00350 Skittles R Perirenal pseudocyst
Sonographic Differential Diagnosis
Right perirenal pseudocyst.
Mildly degenerative left kidney changes.
Concurrent mesenteric lymphadenopathy.
Image Interpretation
The right kidney in this patient presented chronic interstitial nephrosis pattern with irregular contour and focal, cortical collapse. Pelvic calculus was noted that measured 0.68 cm. The parenchymal portion of the right kidney measured 3.58 cm, yet a perirenal pseudocyst was noted with mild, echogenic debris. The pseudocyst extended for approximately 8.0 cm. Slight pyelectasia of the right kidney was noted and measured 0.23 cm. Color flow of the right kidney appeared to be subjectively subnormal. The left kidney was largely unremarkable with mild degenerative changes with a slightly thickened cortex and measured 4.09 cm. Mesenteric lymph nodes were enlarged and measured 3.4 x 1.0 cm. Irregular contour was noted. FNA is recommended
DX
Pararenal pseudocyst
Outcome
None
Clinical Differential Diagnosis
Renal – neoplasia, hydronephrosis, renoliths, pyelonephritis, renal cyst
Mass – neoplasia/cyst/abscess/granuloma of liver, spleen, pancreas, lymph node, mesentery, abdominal wall
Sampling
None
Video
Patient Information
Gender :
Male, Neutered
Species :
Feline
Type of Imaging : Ultrasound
Status :
Complete
Clinical Signs
- Palpable Mass
- Signs of URI
Exam Finding
- Heart Murmur
- Palpable mass
Images
Blood Chemistry
- Azotemia
Clinical Signs
- Palpable Mass
- Signs of URI