Haemangiosarcoma of the os penis in a dog: The most common neoplasm of the canine penis

Authors

  • Richard K Burchell University of Pretoria
  • Robert M Kirberger University of Pretoria
  • Drienie D. (Didi) Janse van Rensburg University of Pretoria

Abstract

A castrated 9-year-old intact male boerboel cross-breed dog was presented with a month-long history of stranguria. On physical examination, a mass was noted at the caudal extremity of the os penis. Haematology, serum chemistry and urinalysis were all unremarkable. Abdominal and urethral ultrasound demonstrated an enlarged bladder and a dilated urethra, which was followed to the caudal extremity of the os penis. A hyperechoic, roughly spherical, vascularised mass was noted at the caudal os penis, which resulted in obstruction of the penile urethra. Radiographs demonstrated a soft tissue mass with osteolysis of the os penis. Cytology suggested an osteosarcoma. Treatment included amputation of the penis and adjuvant doxorubicin with carboplatin. Histopathology of the penis confirmed a haemangiosarcoma. The patient survived for 20 months. This is only the second published case report describing a penile haemangiosarcoma, and the first published report demonstrating the treatment and
outcome of a case of haemangiosarcoma of the os penis. Based on published and unpublished reports, haemangiosarcoma appears to be the most common neoplasm of the canine penis.

Author Biographies

  • Richard K Burchell, University of Pretoria

    Department of Companion Animal Clinical Studies, University of Pretoria, South Africa

  • Robert M Kirberger, University of Pretoria

    Department of Companion Animal Clinical Studies, University of Pretoria, South Africa

  • Drienie D. (Didi) Janse van Rensburg, University of Pretoria

    Department of Paraclinical Studies, University of Pretoria, South Africa

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Published

2021-12-09

Issue

Vol. 85 No. 1 (2014)

Section

Case Report