Cutaan mastocytoom bij een jack russell terriër behandeld met neoadjuvante corticosteroïden gevolgd door een radicale chirurgische excisie

Abstract

A 14-year-old neutered female Jack Russell terrier was presented with a history over the past several years of a freely movable subcutaneous mass on the right lateral thigh, that was considered to be a lipoma. Shortly before presentation, a mastectomy had been performed. On histopathological examination of the inguinal lymph node excised during the procedure, numerous mast cells were identified. Fine-needle aspirates of the mass on the thigh were collected, and cytology confirmed that it was not a lipoma but a mastocytoma. After staging the tumor, it was treated with neoadjuvant prednisolon, followed by the surgical removal of the mass with radical margins. The defect was closed with a transposition flap. Histopathology and immunohistochemistry indicated a grade-II mastocytoma without negative prognostic factors. The dog recovered well after surgery and 347 days after treatment, there were no signs of recurrence.