Bleeding spots seen on removal of scales in psoriasis is called as:: (A) Auspitz sign, (B) Punctuate hemorrhage, (C) Nikolyski's sign, (D) Darriersign
Answer is A. A. (Auspita sign) On removal of scales bleeding spot is called auspitz sign Punctate haemorrahage is also found in psoriasis - Neena Khanna 3rd/ 40PsoriasisAuspitz sign a characterstic finding of plaque psoriasis in which removal of scales leads to pinpoint bleedingCharacteristically presents with silvery mica scaleTypical lesions are erythematious (salmon pink/red), raised, scaly, well demarcated plaques on extensor aspect of trunk&limbs preferentially; the knees, elbows & scalp areespecially affected, although the mucosa seem to be spared.Micro-munro abscess: collection of polymorphs in stratum corneumGrattage Test- on scratching scales appearKoebner's/ Isomorphic phenomenon Psoriasis appears at the site of minor injury such as scratch or graze. It is characterstic of psoriasis , but is also seen in Lichen planus , & discoid lupus erythematosus Wornoff Ring- White hypopigmented halo around erythematous plaque Candle grease sign & BurkleyJs membraneLiching is very uncommonAlopecia, Mucosal involvement & CNS involvement is not seen.Psoriatic arthropathy is uncommon (5%) ; and involves distal interphalyngeal joint, a characteristic features which differentiates it from rheumatoid arthritisIn In nails* Onycholysis (seperation of nail plate from naibed)* Thimble-pitting of nail plate* Brown black discoloration