Pityriasis versicolor is caused by-: (A) E. floccosum, (B) M. gypseum, (C) M. furfur, (D) T. tonsurans
Answer is C. Tinea Versicolor or Pityriasis Versicolor: It is a chronic recurrent condition involving stratum corneum of skin, caused by a lipophilic fungus - Malassezia furfur. Malassezia furfur is a lipophilic fungus that is found on skin. Clinical manifestation: Characterized by scaly patches of hypo to hyper pigmentation of skin * Areas rich in sebaceous glands are commonly involved (neck, chest or upper arms). E. floccosum - cause Tinea unguium M. gypseum - cause Ectothrix infection T. tonsurans and T. violaceum- cause Endothrix