<prompt> Woods lamp used in diagnosis ofPityriasis versicolorVitiligoPorphyriaAll of the above  <response>: Pityriasis versicolor- golden yellow fluorescence tinea capitis grey patch type - greenish yellow fluorescnece porphyria- reddish fluorescence of urine and teeth erythrasma - coral red fluorescence pseudomonas - greenish fluorescence iadvl textbook of dermatology page 94 