[Melanosis of adipose tissue in a 17-month-old German Fleckvieh bull (Bos taurus)].

At meat inspection of a 17-month-old bull (German Fleckvieh), patchy dark discoloration of various organs and tissue sites was noted that was most prominent in perirenal adipose tissue. Microscopic analysis revealed melanosis, that is a congenital melanocytic dystopia, as the underlying cause. To the best of our knowledge, this is the first case of melanosis detected in adipose tissue in cattle. We speculate that there is a possible pathogenetic link between obesity and melanosis in the animal.