| Phenotype details |
onset 3y, Difficulty climbing steps; Muscle spasm; Respiratory muscle weakness; Gowers sign; EMG-NCV: suggestive of myotonic myopathy, R/O chronic myositis; Elevated CPK, LDH & Aldolase levels; Muscle biopsy: myopathic atrophy with some necrotic and degenerative/regenerative fibers and some small foci of perivascular chronic inflammation; IHC: gamma sarcoglycan with weak sarcolemmal labelling of all muscle fibers; Echocardiography: classic MVP, trivial MR & TR. There is parental consanguinity with absence of family history. |