Introduction:
The increase in cancer incidence and mortality calls for a search of effective methods to improve patient's quality of life and well-being.

Aim:
The aim of this article is to present a case study that examined the application of eye movement desensitization and reprocessing (EMDR) therapy for a cancer patient.

Case study:
The patient (Mrs B) was diagnosed with malignant neoplasm of the breast; and during her stay at Holycross Cancer Centre she decided to undergo EMDR therapy in order to deal with pre-existing feelings of helplessness and anxiety. She attended three 90-min sessions, all performed according to the EMDR therapy standard protocol. Furthermore, Mrs B's level of distress was measured using the distress thermometer and she filled in a problem checklist before and after the treatment. The target event, the worst image as well as positive and negative cognition were identified. Also, the validity of cognition (VOC) and subjective units of disturbance were measured before and after the therapy. Furthermore, the patient reported negative body sensations. Then, desensitization phase followed.

Results:
The results of the therapy were: significantly lower level of distress and less problems reported. The patient did not feel any negative emotions or physical sensations and her VOC increased too.

Discussion:
The results are discussed in relation to other studies and future directions for the research are suggested.

Conclusions:
This case suggests possible advantages of EMDR therapy, demonstrating an improvement in patient's well-being in a short time.