Case Report: A Case Series Linked to Vitamin D Excess in Pet Food: Cholecalciferol (Vitamin D3) Toxicity Observed in Five Cats.

Cholecalciferol (vitamin D3) toxicity caused by defective pet food formulations is a rare occurrence described in cats. Nevertheless, it poses a health risk, even though the affected pet food is not fed as the sole diet. Excessive vitamin D3 intake might cause hypercalcemia and soft tissue mineralization, which are findings that prompt clinicians to further investigate the feasible etiology.

Dermatomyositis-like disease in a Rottweiler.

Background: Canine dermatomyositis is a hereditary disease described in collies and Shetland sheep dogs and their cross-breeds. A similar disease, called dermatomyositis-like disease, has been described occasionally in other breeds but never in the Rottweiler.

Hypothesis/objectives: We report on the clinicopathological findings associated with dermatomyositis-like disease in a Rottweiler.