The case of the lumpy corgi
A 12-year old, male neutered Welsh Corgie named Llywelyn (“Lou”) presented to a neurologist for further evaluation of hind limb ataxia of 1 to 2 months duration. A thoracolumbar magnetic resonance imaging (MRI) was performed, followed by a hemilamenctomy procedure. There was also a history of a mass on the abdominal wall, a fine needle aspirate (FNA) was submitted for examination.
Microscopic examination revealed mesenchymal cells with atypia, a pink matrix, and a mitotic figure present. This was intrepreted as a possible sarcoma due to the reactive fibroplasia that can cytologically mimic a sarcoma. In order to confirm or rule out a sarcoma, it would be recommended to submit a biopsy of the mass.
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