Photosensitization dermatitis in animals

Photosensitization, also known as photodermatitis, is an abnormal reaction of the skin when exposed to light and is caused by accumulation of photosensitizing substances in the skin, resulting in a severe dermatitis of the skin unprotected by unpigmented.  There are three types of photosensitization: (a) primary, in which photodynamic chemicals, or plant toxins, reach the skin through the circulation, (b) congenital porphyria, in which there is a metabolic, congenital defect in porphyrin metabolism, and (c) secondary (hepatogenous), which occurs when the capacity of the liver to excrete derived from the catabolism of alimentary chlorophyll is impaired. We consider that liver pathologies are the most important in animals from Romania.