Duchenne muscular dystrophy
a specific form of muscular dystrophy that is inherited as a sex-linked recessive trait and thus confined to young males and to females with turners syndrome. One third of all cases are estimated to be new mutational events.
symptoms include muscle weakness and in some forms, the appearance of muscle enlargement (pseudo-hypertrophy). Advanced cases can include weakness of the respiratory muscles (compromising breathing) and cardiomyopathy.
Incidence: 1 in 4000 male births.