A CASE OF CONCURRENT SARCOPTES-SCABIEI INFESTATION AND HYPOTHYROIDISMIN A DOG

This report describes a 12-year-old ovariohysterectomised female rough collie which was presented with severe pruritus. On scraping the skin two or three sarcoptic mites and eggs per low power field could be se en under microscopic examination. The dog had clinical features compat ible with hypothyroidism which was subsequently confirmed with provoca tive testing. The similarity of this presentation with that of Norwegi an scabies in man is discussed and it is postulated that a hypothyroid state might predispose to the development of severe sarcoptic mite in festation.