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An 80-year-old-woman was referred for evaluation of chest pain that appeared after providing care at home for her sick husband, which included helping him to get up and move about. The pain was initially triggered by lifting heavy objects but then became constant, without exacerbating or relieving factors. The pain was located in the left hemithorax and was not associated with shortness of breath or cough. Because the patient did not feel any better after a month, her general practitioner ordered a radiograph, which revealed a suspicio