A 10-year-old DSH was presented for evaluation of severe azotemia. Renomegaly was evident on physical examination.
A 10-year-old DSH was presented for evaluation of severe azotemia. Renomegaly was evident on physical examination.
Case Study
06-00044 Angel P Renal round cell neoplasia RESEARCH ONLY
DX
Kidney: Atypical round cell population.
Sonographic Differential Diagnosis
Highly suggestive for bilateral renal lymphoma or other neoplasia. Fine-needle aspirates are warranted. Guarded to poor long term prognosis.
Image Interpretation
The kidneys in this patient were bilaterally enlarged with disruption of architecture and corticomedullary definition. Pericapsular inflammatory pattern was noted with capsular escape and a hypoechoic, irregular renal parenchyma. This was present in both kidneys. The left kidney measured 5.3 cm. The right kidney measured 5.24 cm.
Outcome
The patient was lost to follow up.
Clinical Differential Diagnosis
Hydronephrosis, neoplasia (lymphoma), pyelonephritis.
Sampling
FNA revealed atypical round cell population. Differentials to consider include a histiocytic lymphoma or even B cell lymphoma. A biopsy is advised to better differentiate the lesion.
Video
Patient Information
Species :
Canine
Type of Imaging : Ultrasound
History
- Azotemia
Exam Finding
- Large Kidneys
Images
