An 8-month old intact male Turkish Angora cat was referred to the Veterinary Medical Teaching Hospital (VMTH), Seoul National University, for an evaluation of anorexia and severe dyspnea. The thoracic radiographs revealed significant pleural effusion. A cytology evaluation of the pleural fluid strongly suggested a lymphoma containing variable sized lymphocytes with frequent mitotic figures and prominent nucleoli. The feline leukemia virus and feline immunodeficiency virus tests were negative. The cat was euthanized at his owner's request and a necropsy was performed. A mass was detected on the mediastinum and lung lobes. A histopathology evaluation confirmed the mass to be a lymphoma. Immunohistochemistry revealed the mass to be CD3 positive. In conclusion, the cat was diagnosed as a T-cell mediastinal lymphoma.
Animals ; Cat Diseases/*diagnosis/pathology ; Cats ; Lymphoma/diagnosis/pathology/*veterinary ; Male ; Mediastinal Neoplasms/diagnosis/pathology/*veterinary

Two cats were presented with vestibular signs and seizures. Both cats were diagnosed with thiamine deficiency. The transverse and dorsal T2-weighted magnetic resonance (MR) images revealed the presence of bilateral hyperintense lesions at specific nuclei of the midbrain, cerebellum, and brainstem. After thiamine supplementation, the clinical signs gradually improved. Repeated MR images taken 3 weeks after thiamine supplementation had started showed that the lesions were nearly resolved. This case report describes the clinical and MR findings associated with thiamine deficiency in two cats.
Animals ; Brain Stem/pathology ; Cat Diseases/chemically induced/*diagnosis/*drug therapy ; Cats ; Cerebellum/pathology ; Diet/veterinary ; Dietary Supplements/analysis ; Female ; Magnetic Resonance Imaging/veterinary ; Male ; Mesencephalon/pathology ; Seizures/chemically induced/pathology/veterinary ; Thiamine/administration & dosage/*therapeutic use ; Thiamine Deficiency/chemically induced/diagnosis/drug therapy/*veterinary ; Treatment Outcome