Sex hormone- associated hair loss can also develop in pets that are exposed to the owner's topical hormonal creams and where absorption occurs through the pets' skin or the pet licking the owner. Perianal gland hyperplasia ('doughnut' sign) and patchy ano-genital hyperpigmentation. Hyperandrogenism associated with neoplasia or functional abnormalities causes caudal and Sertoli cell tumours are most common in cryptorchid testes causing attraction to maleĭogs, gynectomastia, pendulous prepuce (with squamous cytology) and linear preputial erythema. Hyperoestrogenism (polycystic ovarian disease or ovarian neoplasia) is associated with gynectomastia, vulval swelling and signs of oestrus (including squamous vaginal cytology). Sex hormone alopecias - initially affect the caudal ventrum and genitalia, spreading to the limbs,įlanks and neck. In others alopecia may be restricted to the tail Sarcopenia is a condition characterized by loss of muscle mass. Figure 2: Pathophysiology of diabetic ulcers. Thickened, hyperpigmented and cool skin (myxoedema) is classical, but most dogs show partialĪlopecia/ thinning of the coat with a faded hairs. curitiba sustainable city pdf on pathophysiology of alopecia ppt Alopecia is a medical word that refers to hair loss generally. Hypothyroidism - any combination of systemic and cutaneous signs. Hyperadrenocorticism - symmetrical trunk alopecia/ thinning of the hair coat, comedones,Ītrophic & inelastic skin, prominent blood vessels and calcinosis cutis.
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