Squamous cell carcinoma in chinese hamsters (Cricetulus griseus)

Background: The companion animal market has changed over the years. The number of people living in small apartments has increased; as a result, the demand for small pets such as exotics, fish, and small rodents has also increased due to their smaller space requirements and ease of handling and care. Pets help relieve anxiety and stress in people suffering from social issues. Small rodents are usually bred in specific cages with cellulose or wood shaving bedding, and fed with commercially available diets. Small rodent clinics struggle due to the lack of scientific reports on some diseases and therapies. To date, the oncology literature is too limited to develop better diagnosis and treatment methods. Here, we report three cases of squamous cell carcinoma in the mandibular region of Chinese hamsters (Cricetulus griseus).Case: Three adult male hamsters averaging 1.5 years old, from different pet stores, bred under home conditions by different owners in Sergipe, Brazil, were brought to the Dr. Vicente Borelli Hospital at Pio X University for exotic veterinary care. Each animal had been bred alone in a specific breeding cage. Each had a history of apathy, loss of appetite, and rapid deformity of the facial region. Radiographs showed areas of bone involvement and extensive injury, with partial resorption of the left ramus and angle of the mandibular region. Due to the location of the tumor mass, the clinical status, and limitations in systemic treatment, euthanasia was recommended for each animal. After anamnesis, the animals were subjected to clinical assessment. A firm and well-circumscribed mass was identified on palpation. In case A, it compromised the left mandible from the angle to the body and extended to the maxillary soft tissues and left superior lips. In case B, it extended from the ramus to the symphysis on the left side and to the maxillary region, similar to case A.[...]

Squamous cell carcinoma in chinese hamsters (Cricetulus griseus)

Background: The companion animal market has changed over the years. The number of people living in small apartments has increased; as a result, the demand for small pets such as exotics, fish, and small rodents has also increased due to their smaller space requirements and ease of handling and care. Pets help relieve anxiety and stress in people suffering from social issues. Small rodents are usually bred in specific cages with cellulose or wood shaving bedding, and fed with commercially available diets. Small rodent clinics struggle due to the lack of scientific reports on some diseases and therapies. To date, the oncology literature is too limited to develop better diagnosis and treatment methods. Here, we report three cases of squamous cell carcinoma in the mandibular region of Chinese hamsters (Cricetulus griseus).Case: Three adult male hamsters averaging 1.5 years old, from different pet stores, bred under home conditions by different owners in Sergipe, Brazil, were brought to the Dr. Vicente Borelli Hospital at Pio X University for exotic veterinary care. Each animal had been bred alone in a specific breeding cage. Each had a history of apathy, loss of appetite, and rapid deformity of the facial region. Radiographs showed areas of bone involvement and extensive injury, with partial resorption of the left ramus and angle of the mandibular region. Due to the location of the tumor mass, the clinical status, and limitations in systemic treatment, euthanasia was recommended for each animal. After anamnesis, the animals were subjected to clinical assessment. A firm and well-circumscribed mass was identified on palpation. In case A, it compromised the left mandible from the angle to the body and extended to the maxillary soft tissues and left superior lips. In case B, it extended from the ramus to the symphysis on the left side and to the maxillary region, similar to case A.[...](AU)

Presença de corpos estranhos no aparelho digestorio de jabutis piranga (Chelonoidis carbonaria): relato de caso / Presence of foreign bodies in the digestive system of the jabuti piranga (Chelonoidis carbonaria): a case report

A ingestão de corpos estranhos por répteis cativos está relacionada à manutenção destes animais em ambientes impróprios. O presente relato refere-se à descrição de casos de ingestão de corpos estranhos em três jabutis piranga (Chelonoidis carbonaria) oriundos de criações domiciliares do Estado de Sergipe, Brasil. Os animais foram encaminhados para atendimento médico com histórico de apatia, prostração, perda de apetite e constipação. Após anamnese e avaliação clínica os mesmos foram submetidos a radiografias ventrodorsal simples que confirmaram a presença de materiais radiopacos nas vias digestivas. As condutas terapêuticas foram diferenciadas e um dos animais veio a óbito devido à gravidade de seu estado clínico. A partir desse relato podemos concluir que a ocorrência de ingestão de corpos estranhos pode ocorrer quando o manejo é inadequado.

The ingestion of foreign bodies by captive reptiles is related to the maintenance of these animals in unsuitable places. This report refers to the description of ingestion cases of weird foreign bodies by three jabuti piranga (Chelonoidis carbonaria) from keepers in Sergipe, Brazil. The animals were sent for medical care with a history of apathy, prostration, loss of appetite and constipation. After anamnesis and clinical evaluation the specimens were submitted to simple ventrodorsal radiographs that confirmed the presence of radiopaque material in the digestive tract. Therapeutic procedures were different and one of the animals died due to the seriousness of his condition. From that report we concluded that the occurrence of ingestion of foreign bodies may occur when treatment is inadequate.

Remoção cirúrgica de osteossarcoma mandibular em serpente suaçuboia (Corallus hortulanus) – relato de caso / Surgical removal of mandibular osteosarcoma in an Amazon tree boa (Corallus hortulanus) – case report / Extirpación quirúrgica de osteosarcoma mandibular en una boa arborícola del amazonas (Corallus hortulanus) – relato de un caso

A suaçuboia, pertencente à família Boidae, é uma serpente não peçonhenta, de dentição áglifa, podendo chegar a pouco mais de dois metros de comprimento. Os osteossarcomas são neoplasias malignas de origem mesenquimal, que podem conter tecido conjuntivo, cartilagem, osso imaturo e osteoide. Um exemplar de suaçuboia foi encaminhado para a retirada de uma neoformação na cavidade oral, originada na maxila esquerda. Após a avaliação radiográfica e a confirmação de estrutura radiopaca, instituiu-se um protocolo anestésico com quetamina associada a midazolam para contenção do animal. Para a indução e a manutenção da anestesia utilizou-se isoflurano diluído em oxigênio a 100%, procedendo-se à remoção cirúrgica da estrutura. Fragmentos de tecidos excisados foram processados e avaliados histologicamente; neles se detectaram proliferação de osteoblastos neoplásicos e raras figuras de mitose, concluindo-se o diagnóstico clinicopatológico para osteossarcoma.

The Amazon tree boa is a non-venomous aglyphous snake from the Boidae family that can reach a length of just over two meters. Osteosarcomas are malignant tumors from mesenchymal origin, which may contain connective tissue, cartilage, osteoid and immature bone. An Amazon tree boa was brought in for withdrawal of a neoformation in the oral cavity originating in the left maxilla. After radiographic evaluation and confirmation of the presence of a radiopaque structure, an anesthetic protocol with midazolam associated to ketamine was instituted to restrain the animal. Induction and maintenance was introduced with isoflurane diluted in 100% oxygen for surgical removal of the structure. Tissue fragments were processed and evaluated histologically. Neoplastic proliferation of osteoblasts and rare mitotic figures were detected, allowing the clinicopathological diagnosis of osteosarcoma.

La boa arborícola del amazonas pertenece a la familia Boidae y es una serpiente no venenosa, de dentición aglifa, que puede llegar a los dos metros de largo. Los osteosarcomas son neoplasias malignas de origen mesenquimal, que pueden afectar tejido conectivo, cartílago y hueso inmaduro y osteoide. Un ejemplar de boa arborícola fue derivado para extirpación de una neoformación en la cavidad oral, originada en el maxilar izquierdo. Después de la evaluación radiográfica y de confirmar la presencia de una estructura radioopaca, se realizó una anestesia con ketamina asociada a midazolan, con el fin de contener el animal. Para la inducción y mantenimiento anestésico se utilizó isofluorano diluido en oxígeno al 100%, realizando luego la extirpación quirúrgica de la masa. Se enviaron algunos fragmentos del tejido resecado para examen histopatológico, en el que fue detectada proliferación de osteoblastos neoplásicos y figuras anómalas de mitosis, llegando al diagnóstico clinicopatológico de osteosarcoma.

Remoção cirúrgica de osteossarcoma mandibular em serpente suaçuboia (Corallus hortulanus) relato de caso / Surgical removal of mandibular osteosarcoma in an Amazon tree boa (Corallus hortulanus) case report / Extirpación quirúrgica de osteosarcoma mandibular en una boa arborícola del amazonas (Corallus hortulanus) relato de un caso

A suaçuboia, pertencente à família Boidae, é uma serpente não peçonhenta, de dentição áglifa, podendo chegar a pouco mais de dois metros de comprimento. Os osteossarcomas são neoplasias malignas de origem mesenquimal, que podem conter tecido conjuntivo, cartilagem, osso imaturo e osteoide. Um exemplar de suaçuboia foi encaminhado para a retirada de uma neoformação na cavidade oral, originada na maxila esquerda. Após a avaliação radiográfica e a confirmação de estrutura radiopaca, instituiu-se um protocolo anestésico com quetamina associada a midazolam para contenção do animal. Para a indução e a manutenção da anestesia utilizou-se isoflurano diluído em oxigênio a 100%, procedendo-se à remoção cirúrgica da estrutura. Fragmentos de tecidos excisados foram processados e avaliados histologicamente; neles se detectaram proliferação de osteoblastos neoplásicos e raras figuras de mitose, concluindo-se o diagnóstico clinicopatológico para osteossarcoma.(AU)

The Amazon tree boa is a non-venomous aglyphous snake from the Boidae family that can reach a length of just over two meters. Osteosarcomas are malignant tumors from mesenchymal origin, which may contain connective tissue, cartilage, osteoid and immature bone. An Amazon tree boa was brought in for withdrawal of a neoformation in the oral cavity originating in the left maxilla. After radiographic evaluation and confirmation of the presence of a radiopaque structure, an anesthetic protocol with midazolam associated to ketamine was instituted to restrain the animal. Induction and maintenance was introduced with isoflurane diluted in 100% oxygen for surgical removal of the structure. Tissue fragments were processed and evaluated histologically. Neoplastic proliferation of osteoblasts and rare mitotic figures were detected, allowing the clinicopathological diagnosis of osteosarcoma.(AU)

La boa arborícola del amazonas pertenece a la familia Boidae y es una serpiente no venenosa, de dentición aglifa, que puede llegar a los dos metros de largo. Los osteosarcomas son neoplasias malignas de origen mesenquimal, que pueden afectar tejido conectivo, cartílago y hueso inmaduro y osteoide. Un ejemplar de boa arborícola fue derivado para extirpación de una neoformación en la cavidad oral, originada en el maxilar izquierdo. Después de la evaluación radiográfica y de confirmar la presencia de una estructura radioopaca, se realizó una anestesia con ketamina asociada a midazolan, con el fin de contener el animal. Para la inducción y mantenimiento anestésico se utilizó isofluorano diluido en oxígeno al 100%, realizando luego la extirpación quirúrgica de la masa. Se enviaron algunos fragmentos del tejido resecado para examen histopatológico, en el que fue detectada proliferación de osteoblastos neoplásicos y figuras anómalas de mitosis, llegando al diagnóstico clinicopatológico de osteosarcoma.(AU)