A female toy poodle dog showed severe pain due to metastasis of malignant mixed mammary tumor on the 6 th thoracic vertebral body (T 6) . The T 6 was excised for pain relief and a bone graft obtained from the right iliac wing was placed into the defect under thoracotomy. The T 5 and T 7 were fixed with a miniature plate and screws to stabilize the graft. The quality of the patient's life was markedly improved due to the reduction of pain, although the dog died of systemic metastasis on the 76 th day after the operation.

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External fixation with 3 half pins inserted into the ilium and the major trochanter was applied for two cases of obsolete and habitual and two other cases of fresh coxofemoral luxation in dogs. The fixation was removed 14-16 days after the fixation, when all the dogs could walk and run almost normally. After the removing the fixation, no recurrence was observed in all the cases with normal coxofemoral function. These results suggest this method is quite suitable especially for the treatment of obsolete and habitual coxofemoral luxation in dogs.

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The correlation between end-tidal partial pressure of carbon dioxide (PetCO₂) and arterial partial pressure of carbon dioxide (PaCO₂) was determined in 53 isoflurane-anesthetized horses undergoing surgeries in lateral or dorsal recumbency. The horses were maintained under spontaneous breathing or intermittent positive pressure ventilation (IPPV) . There was a significant (p< 0.05) correlation between PetCO₂ and PaCO₂in lateral and dorsal recumbency. The correlation coefficients under spontaneous breathing and IPPV were 0.781 and 0.906, respectively, in lateral recumbency, and 0.479 and 0.719, respectively, in dorsal recumbency. It is concluded that end-tidal carbon dioxide monitoring serves as a satisfactory parameter of changes in PaCO₂in horses receiving inhalation anesthesia in either lateral or dorsal recumbency, although correlation coefficients decrease under spontaneous breathing in dorsal recumbency.

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Prostatic cancer in a 12-year-old male Beagle dog was described. Ultrasonography revealed an uneven low echo pattern of the markedly enlarged prostate and urethra. Histopathologically, the diagnosis of adenocarcinoma with adenoid structure and cell nest configuration was made.

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