A case report on myxedema madness: curable psychosis.

Myxedema madness is a very rare but established entity. A psychotic patient having hypothyroid features should always be evaluated regarding same. A 30-year-old female without known significant past medical history had, for the past one and half year, continuous persecutory and referential delusions; second and third person auditory hallucinations, facial puffiness and Brief Psychiatric Rating Scale (BPRS) score of 41 on admission. Her thyroid profile was: Thyroid stimulating hormone - 63.71 mIU/L, Free tri iodo threonine (FT3) - 2.1 pg/ml, free tetra iodo thyronine (FT4) - 0.6 ng/ml with normal ultrasound-thyroid. Patient was started on thyroxin 100 μg with a low dose risperidone 2 mg. Risperidone was withdrawn over a week and the patient was discharged on thyroxin alone with BPRS score of 8 and absence of delusions and hallucinations.