[Blepharoplasty after tumor ("cancer eye") removal from the eyes of cattle].

A literature review of surgical techniques used for resection of periocular tumors with conservation of the eyelid is accompanied by a report of the author's personal experience with blepharoplasty in cattle. Included are 13 cases of Fleckvieh cows with squamous cell carcinoma. Five animals were without tumor recurrence after an average time of 10.

["Cancer eye" in German spotted cattle. Occurrence, treatment methods and results].

Incidence, therapy and outcome of bovine ocular squamous cell carcinoma are reported on the basis of 128 cases seen in Fleckvieh cows over a period of 15 years. Of the cases observed, 112 were treated surgically. Of 70 patients checked between 6 and 31 months post op.

Ultrastructural changes in the liver following chronic experimental intoxication with benzine and ethyline vapour.

The livers of two groups of rabbits exposed to longer lasting intoxication, one with benzine vapours and the other one with ethyline vapours, were subjected to examination in an electron microscope twice; immediately after the completion of intoxication and then 3 months later. In both groups there were found: dilatation of the perinuclear spaces, a symptom of nucleolus segregation, dilatation of the ergastoplasm, features of cristolysis of mitochondria and the absence of glycogen. These changes were more intensive in the animals intoxicated with ethyline.

Ultrastructural changes in the lungs after chronic experimental intoxication with benzine and ethyline vapour.

In the group of rabbits chronically intoxicated with petrol vapour slight changes in the dust cells of lungs in the form of cytoplasmic vacuolisation and accumulation of collagen almost completely disappeared 3 months after intoxication. Changes in animals intoxicated with ethyline were much more severe. Besides the accumulation of collagen, appearance of elastin areas, cytolysosomes, changes in the nucleus, widening of ergastoplasm, swelling and cristolysis of mitochondria were observed.