VPA 221: Veterinary Entomology and Acarology (1+1)

Clinical Signs

CLINICAL SIGNS - D.CANIS

Two major clinical forms

Scaly or Squamous demodicosis	Papulonodular demodicosis
“Red mange” of dogs Most common Dry, scaly dermatitis Itching, thickening and wrinkling of skin Loss of hair, reddening of skin Sec infection-rupture of follicular cells, inflammation, purulent exudates Localized or Generalized Repulsive mousy odour Red skin-bluish green- coppery reddish colour Skin is tender, easily bleeds	Obstruction of hair follicles, gland ducts Leads to palpable cyst like/nodular swellings in the skin - traps mites within. Common form in Cattle, Goats & Pigs Lesions enlarge as the mites multiply along with cellular debris and glandular secretions Eventually rupture -leads to secondary infections and abscesses Can rupture internally- introduce mites into lymphatics