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A case of congenital segmental spinal hypoplasia was described in a 40-day-old Holstein calf. The calf was submitted to our clinic (Istanbul University, Faculty of Veterinary Medicine, Education and Research Hospital, Surgery Clinic) with the complaint of not being able to rise to feet after birth. After clinical and radiologic inspection an anomaly was detected in spinal cord at the level of 3 rd and 4 th lumbar vertebrae. As the prognosis of the animal deteriorates, the calf was euthanized and systemic necropsy of the animal was performed. There was no malformation at the vertebrae around lumbar region, but a constriction was found at the third and fourth lumbar region of the spinal cord in macroscopy. It was detected that the sections prepared from the narrowest part of the medulla spinalis revealed the entire disappearance of the canalis centralis, microscopically. Furthermore syringomyelic cavities with different dimensions were observed in dorsal and ventral funiculi.

ABSTRACT:A two-year old male Syrian hamster (Mesocricetus auratus) was brought to the Surgery Clinic at the Istanbul University, Veterinary Faculty, Research and Practice Hospital, with a non-healing wound on the right upper eyelid. An ulcerated, bleeding wound was observed and diagnosed as an eyelid mass. The eyelid mass was excised and submitted for histopathological examination, which resulted in a diagnosis of meibomian adenoma. After excision of the mass, the right upper eyelid became deformed and adopted an abnormal shape. The surgical site was examined two weeks later. No abnormality was observed and the appearance of the right eyelid had returned to normal. Although there are many reports on benign tumours such as polyps, adenomas, haemangiomas and papillomas in hamsters, to the authors' knowledge, this is the first report on a meibomian adenoma in a Syrian hamster which was resolved by surgery.

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