Cutaneous smooth muscle tumors in the dog and cat.
Document Type
Article
Publication Date
2003
Keywords
Cat-Diseases, Cats, Comparative-Study, Dog-Diseases, Dogs, Hair-Follicle, Hamartoma, Immunohistochemistry, Leiomyoma, Leiomyosarcoma, Muscle-Smooth, Skin-Neoplasms
First Page
685
Last Page
692
JAX Source
Vet Pathol 2003 Nov; 40(6):685-92.
Abstract
Cutaneous smooth muscle tumors may arise from arrector pili muscles and from smooth muscles of the dermal vasculature. This report describes histologic and immunohistochemical features of eight arrector pili hamartomas in 8 dogs, 15 piloleiomyomas in 10 dogs and 3 cats, 10 piloleiomyosarcomas in 9 dogs and 1 cat, 1 angioleiomyoma in 1 cat, and 9 angioleiomyosarcomas in 6 dogs and 3 cats. Hamartomas and tumors arising from arrector pili muscles preferentially originated from the dorsal trunk. 5/5 (100%) arrector pili hamartomas, 10/12 (83%) piloleiomyomas, 4/5 (80%) piloleiomyosarcomas, 1/1 (100%) angioleiomyoma, and 6/7 (86%) angioleiomyosarcomas were positive for smooth muscle actin. 5/5 (100%) arrector pili hamartomas, 10/12 (83%) piloleiomyomas, 4/5 (80%) piloleiomyosarcomas, 1/1 (100%) angioleiomyoma, and 1/7 (14%) angioleiomyosarcomas were positive for desmin. Two incompletely excised canine angioleiomyosarcomas recurred locally. Metastases were not reported.
Recommended Citation
Liu SM,
Mikaelian I.
Cutaneous smooth muscle tumors in the dog and cat. Vet Pathol 2003 Nov; 40(6):685-92.