who have
reported that patchy or extensive alopecia,
dry brittle hair coat, scaly lesions,
hyperpigmentation, and bilateral
symmetrical skin lesions were characteristic
of hypothyroidism. Whereas, Fialkovikova
et al., (2008) reported non-pruritic alopecia
(alopecia X) on ventral thighs (bald thigh
syndrome), rat tail appearance with brittle,
dry and change in coat colour and scaling
of skin are the characteristic skin and coat
abnormalities of thyroid malfunction in dog.