<prompt> All are true statements regarding us, EXCEPT:It is a form of Tinea capitisIt is caused by Tinea schoenleinIt causes cicatricial alopeciaIt is characterised by presence of dark brown to black nodules cemented to the hair shaft  <response>: It is characterised by yellowish cup shaped crests called scutula. Dark brownblack nodules are seen as black piedra caused by piedraia hoae.Ref: Rooks Textbook of Dermatology, 8th Edition 