A 7 mo old Labrador retriever presented for evaluation of facial swelling associated with a 5 cm oral mass extending caudally from the upper third premolar on the left side. Cytology revealed an atypical population of round cells of undetermined origin. A diagnosis of alveolar rhabdomyosarcoma (RMS) was reached via histopathology and confirmed with positive immunohistochemical staining for desmin. In humans, RMSs have a well-described round cell cytologic appearance. Few descriptions of veterinary cases of RMS exist. This report describes the cytologic appearance of alveolar RMS in a young dog and both summarizes and compares findings throughout the veterinary and human literature. © 2011 by American Animal Hospital Association.
CITATION STYLE
Snyder, L. A., & Michael, H. (2011). Alveolar rhabdomyosarcoma in a juvenile labrador retriever: Case report and literature review. Journal of the American Animal Hospital Association, 47(6), 443–446. https://doi.org/10.5326/JAAHA-MS-5693
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