Maxillofacial rhabdomyosarcoma in the canine maxillofacial area

Maxillofacial rhabdomyosarcoma in the canine maxillofacial area

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Juvenile rhabdomyosarcomas were diagnosed in two young dogs based on the results of histopathology, phosphotungstic acid-hematoxylin stain, immunohistochemistry, and the age of the dogs.One dog, an 2yrs germanshepard had tumor mass in the maxillary premolar teeth gingiva.Histologically, the gingival mass was an alveolar type of rhabdomyosarcoma.The other dog, a 1.

5-year-old Basset Hound, had alveolar type of rhabdomyosarcoma involving the premolar to molar teeth region and CT examination in each 248 case revealed extensive bony involvement of maxilla.temporal muscles, with metastasis to the regional lymph node and lungs.A diagnosis of solid-pattern alveolar rhabdomyosarcoma was made on the basis of morphologic and immunohistochemical staining for desmin.Alveolar rhabdomyosarcoma should be considered in the differential diagnosis of tumors in juvenile dogs, especially when cytologic findings reveal round, undifferentiated cells.

Both the cases were subjected to surgical excision of tumor tissue followed by chemotherapy.Both the dogs died within two months of the admission.[Vet World 2012; Feminine Medicated Products 5(9.000): 565-567].