Rhabdomyosarcoma in a terrestrial tortoise (Geochelone nigra) in Nigeria: a case report.

Spatial learning and memory in the tortoise (Geochelone carbonaria).

A single tortoise (Geochelone carbonaria) was trained in an eight-arm radial maze, with the apparatus and general procedures modeled on those used to demonstrate spatial learning in rats. The tortoise learned to perform reliably above chance, preferentially choosing baited arms, rather than returning to arms previously visited on a trial. Test sessions that examined control by olfactory cues re...

Origin and evolutionary relationships of giant Galápagos tortoises.

Perhaps the most enduring debate in reptile systematics has involved the giant Galápagos tortoises (Geochelone nigra), whose origins and systematic relationships captivated Charles Darwin and remain unresolved to this day. Here we report a phylogenetic reconstruction based on mitochondrial DNA sequences from Galápagos tortoises and Geochelone from mainland South America and Africa. The closest ...

Computed tomography imaging of a leopard tortoise (Geochelone pardalis pardalis) with confirmed pulmonary fibrosis: a case report

An approximately 20-year-old, female Leopard tortoise (Geochelone pardalis pardalis) was presented with dypsnea, wheezing, anorexia and depression. Whole body radiographs revealed generalized diffuse unstructured 'interstitial lung pattern' with thickened pulmonary septae while computed tomography (CT) showed emphysematous lung parenchyma and thickened pulmonary septae bordered by irregular gro...

Rhabdomyosarcoma in a Budgerigar (Melopsittacus undulates), (The First Case Report from Iran)

Dental Complications Following Radiation Therapy in Rhabdomyosarcoma Patient: Report of a rare Case

Rhabdomyosarcoma is a malignant neoplasm and the most common soft tissue sarcoma in children. The current frontline treatment for rhabdomyosarcoma is a multi-modal approach, comprising chemotherapy, surgical resection, and/or radiation therapy. Radiation therapy during odontogenesis can lead to delayed sequel such as hypodontia, microdontia, and dwarfed teeth with underdeveloped roots. This cas...