Abstract
Hirayama disease is a rare neurologic disease and is characterized by insidious unilateral
or bilateral muscular atrophy and weakness of the forearms and hands without sensory
or pyramidal signs. Our patient presented with bilateral upper limb wasting, which
is a rarer variant of motor neuron disease. The diagnosis of Hirayama disease is based
on dynamic magnetic resonance imaging (MRI). This case displays how dynamic cervical
spine MRI can pick up dynamic cord compression and contributes to zero in the diagnosis
of Hirayama disease.
Keywords
Hirayama disease - dynamic MRI - motor neuron disease
