Cancer-related fatigue is a common symptom in cancer patients which commonly occurs in relation to sleep disturbance. We report a case of a 35-year-old breast cancer survivor, in whom polysomnography and multiple sleep latency testing were utilized to objectively quantify the contribution of excessive daytime sleepiness to the patient's cancer-related fatigue.
Keywords: Cancer-related fatigue; excessive daytime sleepiness; multiple sleep latency test; polysomnography.