A young woman with a left thoracic pain and normal chest radiograph

A young Brazilian woman was admitted to the Emergency Division for localized pain in the left hemithorax and dyspnea worsened by movement for three months, without cough or fever. She was previously healthy and denied allergy, use of alcohol beverages, tobacco or illicit drugs; and was taking oral contraceptive - ethinylestradiol 0.02 mg/drospirenone 3 mg for nine months. Her physical examination and the findings of electrocardiogram, transthoracic echocardiogram, and echo-Doppler of lower extremities were unremarkable. Routine blood determinations were within normal ranges, except for the levels of Ddimers - 304 ng/mL (normal: <500 ng/mL). Respiratory function tests were not conclusive, and complementary imaging studies were done. After diagnosis and clinical management, she was discharged from hospital without symptoms.