Suspected pancreatic carcinoma needle tract seeding in a cat

Suspected pancreatic carcinoma needle tract seeding in a cat

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Case summary A 15-year-old male neutered domestic longhair cat was referred for investigation of a pancreatic nodule.Fine-needle aspiration of the nodule was performed on gruvi golden lager two occasions, 2 weeks apart, and cytology revealed pyogranulomatous inflammation and moderately dysplastic exocrine pancreatic epithelium, suspicious for neoplasia.Thoracic radiographs were unremarkable and a partial pancreatectomy was performed.On histopathology, the nodule was diagnosed as a moderately differentiated pancreatic adenocarcinoma.Two weeks after surgery, a firm subcutaneous nodule was detected on the left ventrolateral abdomen.

Cytology of the nodule was suggestive of pancreatic carcinoma and needle tract seeding was suspected.With palliative treatment, the cat lived a further 136 days.Relevance and novel information To our knowledge, this represents the first report of suspected transabdominal here needle tract seeding of pancreatic carcinoma following fine-needle aspiration in veterinary medicine.Veterinarians should consider this when discussing risks of pancreatic fine-needle aspiration with owners and should attempt to minimise the number of needle aspirations where possible.