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Veterinary Radiology

Teaching and learning about veterinary diagnostic imaging.

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10 year old Border Collie

August 11, 2016 By Allison Zwingenberger

Today’s case is a 10-year-old male neutered Border Collie with episode of collapse, back pain, and hematuria. Where is the mass located?

Show findings...

Findings

The left kidney is markedly enlarged, best seen on the ventrodorsal projection. There is increased soft tissue opacity in the retroperitoneal space. The descending colon is deviated ventrally on the lateral projection and to the right of midline on the ventrodorsal projection. The liver is enlarged, extending beyond the costal arch with rounded margins. The spleen is also enlarged and rounded. The peritoneal detail is normal. No other abnormalities are noted.

Show differential diagnosis…

Differential Diagnosis

  • Left renomegly – Neoplasia, pyelonephritis, hydronephrosis with retroperitoneal effusion
  • Hepatosplenomegaly – Hyperplasia, congestion, neoplasia

Show diagnosis…

Diagnosis

Fibropapilloma with sarcomatous malignant transformation

  • An ultrasound examination showed a cystic renal mass with heterogeneous solid components
  • Splenic nodules were seen on ultrasound, splenectomy and histopathology resulted in a diagnosis of myelolipomas and extramedullary hematopoeisis
  • A liver biopsy of nodules seen at surgery found nodular hyperplasia
  • The mass was surgically removed. Hemangiosarcoma, nephroblastoma, and histiocytic sarcoma were ruled out by immunohistochemistry and special stains

Filed Under: Abdomen, Canine, Case of the Day, Radiographs

Comments

  1. Moose says

    August 11, 2016 at 1:38 pm

    Isn’t the intervertebral disc space in between T12 and T13 compressed?

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