Could subclinical hypothyroidism cause periodic catatonia with delusional misidentification syndrome?

摘要

PERIODIC CATATONIA IS a subtype of schizophrenia involving the repetition of two phases: catatonic excitement; and stupor. Delusional misidentification syndrome (DMS) is a relatively rare complex of symptoms that includes Capgras syndrome and Fregoli syndrome. We describe herein a case in which DMS during the course of refractory periodic catatonia improved dramatically with a low-dose thyroid preparation