Which of the following is included in the Levenson criteria for congenital cholesteatoma: (A) White mass medial to normal tympanic membrane, (B) Attico-antral perforation of the tympanic membrane, (C) Definite history of otorrhoea, (D) History of prior otologic procedures
Answer is A. levenson's criteria : Mass medial to the tympanic membrane. Normal tympanic membrane. No previous history of ear discharge, perforation or ear surgery. Ref: Internet sources.