Adenocarcinoma in Dogs

Hemangiosarcoma is a malignant cancer that originates from endothelial cells

Some breeds of dogs, such as Golden Retrievers and German shepherds, are predisposed the most common sites of origin include the spleen, right auricle/atrium of the heart, and subcutaneous tissue below the skin

Unfortunately, hemangiosarcoma is a very aggressive type of cancer which tends to metastasize to intraabdominal organs and the lungs, which makes the long-term prognosis poor for most dogs with this disease

History

Physical Exam

Diagnostics

Surgery

Histopathology

The patient was presented with one firm mammary masses, gradually enlarging over several months

The owner reported intermittent discomfort and occasional licking of the affected gland. No significant weight loss or systemic illness was noted at the time of presentation.

  • One firm, nodular masses palpated along the mammary chain.
  • The affected gland showed regular surface and variable attachment to underlying tissue.
  • Regional lymph nodes (inguinal/axillary) were not palpably enlarged.
  • No respiratory signs noted initially.
  • Fine Needle Aspiration / Cytology: Epithelial cell clusters with marked anisokaryosis and anisocytosis, prominent nucleoli, and evidence of glandular differentiation : consistent with adenocarcinoma.
  • Thoracic radiographs / ultrasound: ( no detectable pulmonary metastasis or presence of nodules)
  • Blood work: normal blood work

Surgical excision: radical Mastectomy and Ovariohysterectomy

Mass was submitted to lab for histopathologic evaluation and pending the results

Surgery

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