Diagnosis of cutaneous diseases

Diagnosis by lesional patterns

 spongiotic pattern , psoriasiform pattern , pustular pattern
 lichenoid pattern , interface pattern
 dermal perivascular pattern , vasculopathic pattern
 dermal non-granulomatous granulocyte-rich pattern
 dermal granulomatous pattern and necrobiotic pattern
 vesiculobullous pattern , acantholytic pattern
 dermal collagen alterations , elastic tissue alterations
 cutaneous deposits
 folliculitis , perifolliculitis , disease of skin appendages
 alpecia
 panniculitis
 pigmentary disorders / pigmentary diseases