Poor coats and how to grow hair (Proceedings)


Poor coats and how to grow hair (Proceedings)

Nov 01, 2010

Poor hair coats and alopecia that are not a result of inflammation or pruritus and are symmetric or involve much of the body most commonly reflect a disorder of hair growth that is metabolically or genetically related. In general the disorders will fit into one of four categories.


Inadequate intake or utilization such as results from malabsorption or liver disease
     • protein,
     • fatty acids
     • zinc
     • vit A
     • Endocrine
          o Hyperglucocorticism
          – Natural pituitary dependent, adrenal tumor
          – Iatrogenic
          o Hypothyroidism
          o Hyperestrogenism
          – Gondal, iatrogenic, neoplasia, adrenal
          o Hyperprogesteronism
          – Gondal, iatrogenic, neoplasia adrenal
     • Follicular dysplasia
     • Endocrine Modulated
          – Alopecia X–Adrenal syndrome-Atypical cushings
          – Castration responsive –
          – Canine cyclic flank alopecia
          – Siberian husky and Malamute follicular dysplasia
          – Irish Water Spaniels
          – Chesapeake Bay retriever (CBRS)
     • Non Endocrine Modulated
          o Abnormalities in Melanin transfer or production
          – Color dilution alopecia (CDA)
          – Black hair follicle dysplasia (BHFD)
Congenital Malformation of hairs
          – Hairless breeds
          – Congenital hypotrichosis
          – X linked ectodermal dysplasia
          o Post Clipping Alopecia
          o Follicular lipidosis of rottweilers
          o Pattern alopecia
          o Pinnal alopecia
          – Pinnal alopecia
          – Caudal pinnal, ventral and thigh alopecia
          – Non-classic, curly coated retriever, American water spaniel and Portuguese water dogs
     • Keratinization/epithelialization
     • Primary idiopathic seborrhea
     • Sebaceous adenitis