Line 35: |
Line 35: |
| *To aid [[Ectoparasiticides|acaricide]] penetration, clipping a dog's coat and washing is recommended | | *To aid [[Ectoparasiticides|acaricide]] penetration, clipping a dog's coat and washing is recommended |
| | | |
| + | *[[Demodex|''Demodex'']] are normal inhabitants of hair follicles and sebaceous glands |
| + | *Have to have increased number of immature mites to classify as infestation |
| + | *Host-specific |
| + | *Occurs in dogs, cattle, sheep, goats, pigs, horses and cats |
| + | *Transmits during nursing from dam to offspring |
| + | *''Demodex canis'' in dogs: |
| + | **Generalised or localised |
| + | **Mainly young dogs affected or adults with other disease ([[Adrenal Glands - Pathology#Adrenal Hyperfunction|hyperadrenocorticism]], [[Thyroid Gland - Pathology#Hypothyroidism|hypothyroidism]]) |
| + | **Often inherited in pure bred |
| + | **Grossly: |
| + | ***Localised: scaly, erythematous, macular, alopecic areas; usually face or front legs |
| + | ***Generalised: large, coalescing lesions, patches, erythema, alopecia, scales, crusts |
| + | **Microscopically: |
| + | ***Localised: lymphoplasmacytic perifolliculitis with hyperkeratinisation, sebaceous adenitis, low pigment, intraluminal mites |
| + | ***Generalised: perifolliculitis and follicular hyperkeratosis, follicular pluggingf, bacterial proliferation, bacterial neutrophilic folliculitis |
| + | ****May cause folliculat rupture -> furunculosis, cellulitis, lymphadenitis and septicaemia |
| | | |
| <big> | | <big> |