Hypothyroid myopathy mimicking postpolio syndrome

Abstract

Hypothyroidism can have diverse neurological manifestations. Myopathy may rarely be the sole manifestation of autoimmune thyroiditis. We hereby report an atypical manifestation of severe hypothyroidism in a middle-aged woman with childhood onset of paralytic polio involving her right leg presenting with a recent onset of increased weakness in the right leg mimicking postpolio syndrome.

Figure 1

Patient photograph of the lower limbs demonstrated reduced bulk (atrophy) in right thigh and leg region.

Figure 2

Needle electromyography of right quadriceps suggestive of large-amplitude motor unit action potential and reduced interference.