Gastrointestinal Manifestations As the Initial Presentation of Neurological Disease.

Myotonic dystrophy (MD) is a multi-system autosomal dominant disorder characterised by progressive muscular weakness, with ocular, cardiac, and endocrine involvement. Gastrointestinal manifestations are not a classical feature of myotonic dystrophy and are hence often misdiagnosed if they precede musculoskeletal manifestations. We present a rare case of chronic diarrhoea as the initial manifestation of myotonic dystrophy in a young adult male with a history of diabetes mellitus and early onset cataract.