Takeo Minami

Unilateral Intraocular Osteosarcoma in a Welsh Corgi

a 13-year-old female Welsh Corgi was treated for refractory glaucoma. Ultrasound examination suggested an intraocular tumor. Computer tomography (CT) revealed hyperattenuating lesions in the affected eye. enucleation was performed and intraocular osteosarcoma was diagnosed by histopathology. The tumor recurred at the surgical area on the 46th day after surgery. intracranial tumor invasion was suspected based on clinical signs, and the dog was euthanized. Based on this case, CT scanning may be useful for detecting primary intraocular osteosarcoma. These tumors may show malignant behavior and severe local invasiveness compared with other types of intraocular tumors. Keyword: intraocular tumor, osteosarcoma, dog

Effects of flunitrazepam-ketamine mixed injection for inhalation induction.

Experiments were performed to investigate the effects of inhalation induction in dogs. The combination is preceded by administration of 0.025 mg/kg of atropine sulfate subcutaneously. The dosage is 0.1 mg/kg of flunitrazepam and 5 mg/kg of ketamine, administered intravenously mixed in one syringe. The results were as follows :1. Jaw reflex and auricular reflex were cd not disappear completely but intubation was performed easily. 2. Decrease of arterial blood pressure was controlled in comparison with flunitrazepam administration alone.3. Less obvious changes in electrocardiogram were found in it.4. Immediately after administration, respiration rate and arterial oxygen tension were slightly decrease, therefor using it, in advance anesthesia, great care and inhalation oxygen must be taken.5. The above : It was suggested that flunitrazepam and ketamine administered intravenously mixed injection were useful means.