A thermal dysregulation problem after breast cancer surgery; what could be?

RATIONALE: Chronic fatigue syndrome (CFS) is a complicated disorder characterized by severe fatigue that is not relieved with rest and associated with physical symptoms such as sleep problems, headache, muscle pain, or joint pain. PATIENT CONCERNS: Forty-one year old patient complained from feeling cold after breast cancer surgery. DIAGNOSES: The diagnoses of fibromyalgia, depression, neurological, psychiatric, and vascular disorders were excluded by appropriate clinical and laboratory investigations. She was diagnosed as CFS. INTERVENTIONS: The patient was treated successfully via aerobic exercise therapy that scheduled for 30 min at least 3 days per week. OUTCOMES: At 6-month follow-up, her complaints were almost resolved and the patient regained her physical health and mental attitude. LESSONS: A thermal dysregulation should be taken into consideration as one of the symptoms of CFS.