Mode of inheritance of otosclerosis is: (A) Autosomal Recessive, (B) X linked Recessive, (C) Autosomal Dominant, (D) Y linked
Answer is C. There is a marked hereditary tendency to otosclerosis in ceain families, and in nearly 50 percent of cases, a positive family history can be obtained. The pattern of inheritance is autosomal dominant with incomplete penetrance.Ref: PL Dhingra, Diseases of Ear, Nose & Throat, 7th edition, pg no. 95 - 98