<prompt> Cardiomyopathy is seen in all except -AlkaptonuriaType 2 glycogen storage disorderDuchenne muscular dystrophyFreidrich ataxia  <response>: signs and symptoms of Alkaptonuria:valvular hea diseases mainly calcification regurgitation of the aoic and mitral valves, may occur, and in severe and progressive cases, valve replacement may be necessary. Irregularities in the hea rhythm and hea failure affect a significant propoion of people with alkaptonuria 40 and 10, respectively. Hearing loss affects 40 of people. Also, a propensity to developing kidney stones exists, and eventually also gallstones and stones in the prostate and salivary glands sialolithiasis can occur. Ref Harrison 20th edition pg 1578 