Etiology of Pityriasis rosea is: March 2012
Correct Answer: Herpes virus
Description: Ans: B i.e. Herpes virus Skin conditions and causative agent Etiological factor for pityriasis versicolor is Malassezia furfur (earlier classified as pityrosporum ovale), a commonest yeast Etiology of pityriasis rosea is unkown. A virus (Human herpes Virus-7 more frequently, HHV-6 less frequently) has often been incriminated Pemphigus vulgaris is an autoimmune disease, characterized by acantholysis, induced by deposition of IgG autoantibodies in an intercellular area of epidermis Staphylococcus aureus, present in either a distant cutaneous focus or in an extracutaneous focus releases an exfoliative toxin that results in peeling of skin (staphylococcal scalded skin syndrome).
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