Fatal Thyrotoxic Crisis.Herman, Gilbert E. M.D., Ph.D.; Kanluen, Sawait M.D.; Monforte, Joseph Ph.D.; Husain, Mujtaba M.D.; Spitz, Werner U. M.D.; Taff, Mark L.American Journal of Forensic Medicine & Pathology: June 1986 Residents' Corner: PDF Only Abstract Abstract : Graves' disease is a form of hyperthyroidism. A rare complication of Graves' disease is thyrotoxic crisis. Although the crisis is frequently fatal, it is a distinctly unusual cause of sudden death. We investigated the case of a young woman with Graves' disease who died suddenly. Radioimmunoassay tests of thyroid function were used to establish the diagnosis. (C) Lippincott-Raven Publishers.