Derm: concluding odds and ends

- perifolliculitis is inflammation around the hair follicle

- folliculitis is inflammation within the lumen

- furunculosis is follicle rupture

- ringworm is a type of fungus that uses keratin in hair and epidermis (decays it)

- demodex mites are part of normal canine facial flora. They proliferate when the immune system is suppressed.

- vasculitis must have 2 components

• inflammatory cell infiltrate (in or around vessel wall)


• vascular injury

- panniculitis results in damage to adiopocytes. Fatty acids are potent inflammatory mediators.

- hyperadrenocoricism occurs due to increased glucocorticoids, either endogenous or exogenous

• hallmark lesion is calcinosis cutis: mineralization of dermal collagen

dermal fibrosis: involves loss of all adnexal units

• fibroplasia is the proliferation of granulation tissue


• fibrosis is the end stage of fibroplasia; involves increased collagen deposition with altered arrangement.