Polymyositis-like syndrome caused by hypothyroidism, presenting as camptocormia.

Polymyositis-like syndrome characterized by proximal muscle weakness and elevation of muscle enzymes may be a presenting manifestation of hypothyroidism. Camptocormia, which can be caused by myopathy of the paraspinal muscles, is an involuntary truncal flexion of the thoracolumbar spine while standing or walking. Among various neuromuscular disorders, hypothyroidism has not been reported in the literature as a cause of camptocormia. This is the first report of polymyositis-like syndrome with camptocormia caused by hypothyroidism.