1,721,004 research outputs found
Feline oral squamous cell carcinoma: an ‘osteogenic’ type? - 26th Annual Meeting of the European Society of Veterinary Pathology
No full textParosteal fibrous maxillary osteosarcoma in a horse: a case report
No full textOsteosarcoma is the most frequent malignant bone tumor in domestic animals and humans, representing 80-85% of malignant
bone tumors in dogs [9, 10] and about 70-75% in cats. Only a few cases of osteosarcoma have been reported in horses with the majority in
the mandible of young horses [3]. Maxillary osteosarcoma causes disruption of the bones with subsequent disruption of the dental arcade
and interference with mastication [3, 5]. We describe a case of primitive parosteal fibrous maxillary osteosarcoma in a 16–year old Anglo-
Arabian horse, hospitalized first for a clinical diagnosis of sinusitis. This case is also unusual in that generally maxillary fibrous osteosarcomas
are low grade malignancies with minimal potential to metastatize, yet in this case the tumor had already spread to a regional lymph
node by the time the horse was presented for examination, confirming the unpredictability of osteosarcoma
Cholangiocarcinoma of intrahepatic bile ducts with disseminated metastases in an African lion (Panthera Leo)
No full textA cholangiocarcinoma is reported in an 18-yr-old, female African lion (Panthera leo). The primary tumor consisted of multifocal to coalescing, hepatic, white-yellow masses distributed throughout the liver lobes. Metastases were present in regional lymph nodes, peritoneal surface, and lungs. Histologically, the tumor was characterized by a tubular pattern with alcian-and periodic acid-Schiff-positive secretory material in cystic spaces. The neoplastic cells were positive to broad-spectrum cytokeratins. Histochemical and immunohistochemical stains were consistent with bile duct carcinoma. Biliary tumors arising from the gallbladder have been reported in lions. However, to the authors' knowledge, this is the first case of intrahepatic bile duct carcinoma reported in an African lion. © 2013 American Association of Zoo Veterinarians
Parosteal fibrous maxillary osteosarcoma in a horse: a case report
No full textOsteosarcoma is the most frequent malignant bone tumor in domestic animals and humans, representing 80-85% of malignant
bone tumors in dogs [9, 10] and about 70-75% in cats. Only a few cases of osteosarcoma have been reported in horses with the majority in
the mandible of young horses [3]. Maxillary osteosarcoma causes disruption of the bones with subsequent disruption of the dental arcade
and interference with mastication [3, 5]. We describe a case of primitive parosteal fibrous maxillary osteosarcoma in a 16–year old Anglo-
Arabian horse, hospitalized first for a clinical diagnosis of sinusitis. This case is also unusual in that generally maxillary fibrous osteosarcomas
are low grade malignancies with minimal potential to metastatize, yet in this case the tumor had already spread to a regional lymph
node by the time the horse was presented for examination, confirming the unpredictability of osteosarcoma
Un caso di sospetta malformazione vertebrale complessa (CVM) in un vitello frisone di 6 mesi
No full textNASAL CARCINOSARCOMA IN TWO DOGS
No full textCarcinosarcoma (CS) is a rare tumor with still unclear histogenesis, composed by two cell types, epithelial and mesenchymal, both showing features of malignancy. It is rarely reported in animals, mostly in canine mammary gland1, more rarely in the head2, thyroid gland3 and other organs.
Aim of the work: to describe two cases of nasal carcinosarcoma, never previously reported in the dog
Indagine retrospettiva su 40 casi di mastocitoma cutaneo felino: aspetti diagnostici e prognostici.
No full text- …
