ABSTRACT
This chapter shows the general approach to juvenile dermatoses and explains its related diseases. These include juvenile cellulitis, facial swelling, blepharitis, conjunctivitis and otitis, shar pei mucinosis, hereditary epidermolysis bullosa, Ehlers–Danlos syndrome, ectodermal dysplasia, colour dilution alopecia, and pituitary dwarfism. Dogs with black hair follicular dysplasia condition have an abnormality in the growth of the black hairs, perhaps related to pigment transfer abnormalities. A specific pattern of alopecia is seen in Portuguese Water dogs and Irish Water Spaniels. These diseases appear to be a hair cycling abnormality because hair will regrow spontaneously, but pigment may be clumped and follicles misshapen similar to follicular dysplasia. Pattern baldness is a condition most commonly seen in small breed, short-coated dogs. The aetiopathogenesis of canine familial dermatomyositis is postulated that immunological damage occurs to blood vessels, resulting in ischaemic damage to the skin and muscles.
