Hemangiosarcoma in the radius of a dog treated by limb-sparing surgery

Background: Hemangiosarcoma is a malignant neoplasm particularly rare as a primary bone tumor. The standard treatment for dogs with this neoplasm usually takes limb amputation. The aim of this paper is to report a primary hemangiosarcoma on the distal radius, treated by limb-sparing surgery. Case: An 11-year-old mixed breed male intact dog with body weight of 30 kg was admitted to the Veterinary Teaching Hospital of the Federal University of Rio Grande do Sul (HCV-UFRGS) with previous history of progressive lameness on the right forelimb for a few months. Physical examination was unremarkable. The orthopedic examination revealed grade 4/5 lameness, swelling of the distal radioulnar joint with severe pain at palpation. Radiographs revealed intense osteolysis of the distal radial epiphysis with no involvement of the ulna and carpal bones. Biopsy revealed bone hemangiosarcoma. Chest radiographs and abdominal ultrasound showed no abnormalities or signs of metastases. The treatment of choice was limb-sparing surgery with the use of allogeneic cortical graft from bone bank preserved in glycerol 98% at room temperature. Arthrodesis was performed with a 4.5 mm dynamic compression plate with 10 holes and eight screws. Histological analysis of the bone fragment confirmed the diagnosis. The dog recovered satisfactory limb function and within 15 days postoperatively presented grade 2/5...(AU)

Hemangiosarcoma in the radius of a dog treated by limb-sparing surgery

Background: Hemangiosarcoma is a malignant neoplasm particularly rare as a primary bone tumor. The standard treatment for dogs with this neoplasm usually takes limb amputation. The aim of this paper is to report a primary hemangiosarcoma on the distal radius, treated by limb-sparing surgery. Case: An 11-year-old mixed breed male intact dog with body weight of 30 kg was admitted to the Veterinary Teaching Hospital of the Federal University of Rio Grande do Sul (HCV-UFRGS) with previous history of progressive lameness on the right forelimb for a few months. Physical examination was unremarkable. The orthopedic examination revealed grade 4/5 lameness, swelling of the distal radioulnar joint with severe pain at palpation. Radiographs revealed intense osteolysis of the distal radial epiphysis with no involvement of the ulna and carpal bones. Biopsy revealed bone hemangiosarcoma. Chest radiographs and abdominal ultrasound showed no abnormalities or signs of metastases. The treatment of choice was limb-sparing surgery with the use of allogeneic cortical graft from bone bank preserved in glycerol 98% at room temperature. Arthrodesis was performed with a 4.5 mm dynamic compression plate with 10 holes and eight screws. Histological analysis of the bone fragment confirmed the diagnosis. The dog recovered satisfactory limb function and within 15 days postoperatively presented grade 2/5...

Utilização de flap de padrão axial genicular em cão com hemangiopericitoma (relato de caso) / Use of genicular axial flap in dog with hemangiopericytoma: case report / Uso del colgajo en padrón axial genicular en perro con hemangiopericitoma: reporte de caso

A casuística de cães diagnosticados com neoplasias vem aumentando consideravelmente. O hemangiopericitoma canino é uma neoplasia mesenquimal que geralmente apresenta-se como nódulo único, multilobular, de consistência firme, localizado preferencialmente em região de articulação úmero-radio-ulnar e fêmuro-tibio-patelar. Os retalhos axiais geniculares são utilizados para recobrir defeitos na tíbia lateral e medial e na articulação tibiotársica. O objetivo deste trabalho é descrever um caso atendido no Hospital Veterinário da Universidade de Marília - UNIMAR de um cão com diagnóstico de hemangiopericitoma em que foi realizada cirurgia reconstrutiva com a técnica de flap axial genicular. O domínio de técnicas de cirurgia reconstrutiva permite a realização do procedimento adequado, proporcionando recuperação rápida, de baixo custo, com excelente resultado estético e funcional.(AU)

The casuistry of dogs diagnosed with neoplastic has increased considerably. Canine hemangiopericytoma is a mesenchyme neoplasm that usually presents itself as a single nodule, multilobular, firm consistency, preferentially located in the region of the umero-radio-ulna joint and femur-tibia-patellar. The genicular axial flaps are used to cover defects in the lateral and medial tibia and tibiotarsal joints. The objective of this study is to describe a case in the Veterinary Hospital of the University of Marilia - UNIMAR of a dog diagnosed withhemangiopericytoma, it was performed reconstructive surgery with genicular axial flap technique. The domain of reconstructive surgery techniques allows performing the appropriate procedure, providing fast recovery, low cost, with excellent aesthetic and functional result. (AU)

La serie de los perros diagnosticados con cáncer ha aumentado considerablemente. Hemangiopericitoma canina es una neoplasia mesenquimal que por lo general se presenta como un nódulo único, multilobular, consistencia firme, preferiblemente ubicado en la región del húmero-radio-cubital y la articulación femoro-tibio-rotuliana. Las aletas axiales geniculares se utilizan para cubrir defectos de la tibia y el corvejón conjunta lateral y medial. El objetivo de este estudio es describir un caso el Hospital Veterinario de la Universidad de Marilia - UNIMAR un perro diagnosticado con hemangiopericitoma que se realizó la cirugía reconstructiva con técnica de colgajo axial genicular. Las técnicas de cirugía reconstructiva de dominio permite llevar a cabo el procedimiento adecuado, proporcionando una rápida recuperación, de bajo costo, con un excelente resultado estético y funcional.(AU)

Utilização de flap de padrão axial genicular em cão com hemangiopericitoma (relato de caso) / Use of genicular axial flap in dog with hemangiopericytoma: case report / Uso del colgajo en padrón axial genicular en perro con hemangiopericitoma: reporte de caso

A casuística de cães diagnosticados com neoplasias vem aumentando consideravelmente. O hemangiopericitoma canino é uma neoplasia mesenquimal que geralmente apresenta-se como nódulo único, multilobular, de consistência firme, localizado preferencialmente em região de articulação úmero-radio-ulnar e fêmuro-tibio-patelar. Os retalhos axiais geniculares são utilizados para recobrir defeitos na tíbia lateral e medial e na articulação tibiotársica. O objetivo deste trabalho é descrever um caso atendido no Hospital Veterinário da Universidade de Marília - UNIMAR de um cão com diagnóstico de hemangiopericitoma em que foi realizada cirurgia reconstrutiva com a técnica de flap axial genicular. O domínio de técnicas de cirurgia reconstrutiva permite a realização do procedimento adequado, proporcionando recuperação rápida, de baixo custo, com excelente resultado estético e funcional.

The casuistry of dogs diagnosed with neoplastic has increased considerably. Canine hemangiopericytoma is a mesenchyme neoplasm that usually presents itself as a single nodule, multilobular, firm consistency, preferentially located in the region of the umero-radio-ulna joint and femur-tibia-patellar. The genicular axial flaps are used to cover defects in the lateral and medial tibia and tibiotarsal joints. The objective of this study is to describe a case in the Veterinary Hospital of the University of Marilia - UNIMAR of a dog diagnosed withhemangiopericytoma, it was performed reconstructive surgery with genicular axial flap technique. The domain of reconstructive surgery techniques allows performing the appropriate procedure, providing fast recovery, low cost, with excellent aesthetic and functional result.

La serie de los perros diagnosticados con cáncer ha aumentado considerablemente. Hemangiopericitoma canina es una neoplasia mesenquimal que por lo general se presenta como un nódulo único, multilobular, consistencia firme, preferiblemente ubicado en la región del húmero-radio-cubital y la articulación femoro-tibio-rotuliana. Las aletas axiales geniculares se utilizan para cubrir defectos de la tibia y el corvejón conjunta lateral y medial. El objetivo de este estudio es describir un caso el Hospital Veterinario de la Universidad de Marilia - UNIMAR un perro diagnosticado con hemangiopericitoma que se realizó la cirugía reconstructiva con técnica de colgajo axial genicular. Las técnicas de cirugía reconstructiva de dominio permite llevar a cabo el procedimiento adecuado, proporcionando una rápida recuperación, de bajo costo, con un excelente resultado estético y funcional.