Richieri Costa Da Silva syndrome

Overview

A very rare syndrome characterized mainly by mental retardation, skeletal anomalies and delayed muscle relaxation .

Symptoms

Myotonia Mental retardation Skeletal anomalies Muscle disease Osteoporosis

Causes

Andersen cardiodysrhythmic periodic paralysis Proximal myotonic myopathy Myotonia congenita Hypothyroidism Myotonia fluctuans