Guillain-Barré syndrome associated with Hashimoto's thyroiditis.

A 73-year-old patient developed tetraplegia, cranial neuropathies and autonomic instability and died of clinical complications of Guillain-Barré syndrome. He was incidentally found to have subclinical Hashimoto's thyroiditis. The literature since 1966 is reviewed for the association of Guillain-Barré syndrome with thyroiditis, other endocrine abnormalities, and some diseases thought to be caused by autoimmune mechanisms.