Abstract
A 32-year-old man complained of right shoulder and neck pain, so he visited the outpatient clinic of the Emergency Center at 13:55 on June 16, 1986. He had felt light shoulder pain and general fatigue since early April 1986.
While examining him at the clinic, his general condition had been getting worse sub-acutely, finally he went into somnolence with tachycardia, tachypnoe and hypotension. He was immediately transferred to the ICU at 15:30. Several clinical exams such as echographies of chest, neck and abdomen, chest radiography, and blood exams were carried out and these exams revealed severe anemia, hypovolemia, acidosis and massive hemorrhage in both pleural cavity and r-neck region. Finally, he went unconscious and then into respiratory arrest followed by cardiac arrest at 17:56. Autopsy was permitted. As a result of autopsy, pathological diagnosis of massive hemorrhage that occurred in possibly teratoma, arising from r-neck that extended into upper anterior mediastinum was made. Diagnosis of the tumor was as a teratoma, which is a benign and mature teratoma, Grade I by Gonzalez-Crussi's classification.
