Extraskeletal osteosarcoma in dogs: presentation of two cases.

Two cases of extraskeletal osteosarcoma are presented with different localization. A neoplasic form localized in the peritraheal area was emphasized in a six years German shepherd male dog and another one at the mammary gland of a thirteen years old Teckel female dog. The radiographic images were emphasized in the areas of high radioopacity at the level of soft tissues in the areas mentioned, but histologically is the extraskeletal osteosarcoma.