Akademik Veri Yönetim Sistemi
Veteriner Hekimler Derneği Dergisi, cilt.91, sa.2, ss.159-163, 2020 (Hakemli Dergi)
Pilomatricoma is a benign adnexal skin neoplasm uncommonly reported in dogs. Three nodules surgically removed from the back of a 13-year-old female papillon dog at the Surgery Department of Ankara University, Faculty of Veterinary Medicine, formed the material of this study. The masses formation started six months earlier. Surgically resected nodules were sent to the Pathology Department of Ankara University, Faculty of Veterinary Medicine, for a detailed histopathological examination. Grossly, the nodules were 1x0,5x0,5 cm; 2x2x1 cm and 1x1x1 cm in diameter and covered with ulcerated skin. The masses were elastic in consistency with yellow-reddish cut sections. Histopathological examination revealed subcutaneous cystic structures surrounded by ghost cells or shadow cells and containing keratin filaments on the surface in all the nodules. The tumor was diagnosed according to the pilomatricoma chronological staging method used in human medicine as an early stage of pilomatricoma due to the presence of cystic structures and the absence of calcification and giant cells. This study is thought to assist by the definition of early lesion of canine pilomatricoma to the histopathological classification of pilomatricomas in canine species.