[Case report: photosensitization followed by chronic exungulation in cattle].

Isolated cases of photosensitization in grazing cattle are observed in a greenland district of North West Germany close to the North Sea. With adequate treatment the disease usually takes a benign course. Sometimes, however, also the claws are involved in the disease process with the consequence that the photodermatitis later on is followed by chronic exungulation.

[Severe dystocia in cattle caused by peritoneal mesotheliosis of the calf].

A case of congenital peritoneal mesotheliosis in a calf which caused hindrance of parturition necessitating partial fetotomy is described; patho-anatomical, -histological and environmental findings are given.