Cancer and Folie à Deux

(case report): In this case, the patients delusional system had a grave impact on her ability to make rational healthcare decisions, for which she was deemed incompetent. The first choice for her healthcare surrogate, her husband, was so affected by his sharing of her psychotic condition that he could not fulfill this role. In assessing a suspected case of folie à deux, awareness of several issues the point at which religious overideation becomes delusional, the spectrum of competency, informed consent, and treatment refusal is important.