Delusional disorder is characterized in current classifications by the development of one delusional thought or set of related delusional ideas that are usually permanent. Body dysmorphic disorder is sick preoccupation with appearance of the whole body or focused on particular areas of body, when the patient is convinced that there is a change of shape, structure or function.

We will present 36-year old patient who was sent to a psychiatry recommended by the otorinolaringology specialist, where he was treated three years for sore throat. The patient was very focused and concerned about the problems of the target organ.

Correct diagnosis is very important for choosing adequate therapy.

clinical interview, psychologic testing, EEG egzam.

He was treated with different combinations of drugs, but the combined therapy showed that the most effective were quetiapin, venlafaksin and valproat acid.

Individual access and knowledge of the pathophysiological background of patients with delusional body dysmorphic disorder is of great importance in choosing psycho pharmacotherapy.