Magnetic Resonance Imaging Findings of Intrapulmonary Hematoma

An 89-year-old man was referred to our hospital for investigation of a 4 cm × 5 cm round shadow containing air in the right lower lobe (Figure A). He complained of a 1-week history of continuing hemosputum. He had surgical histories of rectal cancer at 60 years old and gastric cancer at 67 years old. He also had a history of anaphylactic shock when given computed tomography contrast agent. He was taking neither antiplatelet agents nor...