[Primary pulmonary artery sarcoma showing multiple HDA on the brain CT--an autopsy case report].

A 67-year-old female suddenly developed a speech disturbance and right hemiplegia. She was diagnosed as having cerebral infarction. Then 2 months later, she had a fever and disturbance of consciousness. She died of respiratory insufficiency. The brain CT showed multiple high density areas with niveau. The autopsy revealed primary pulmonary artery sarcoma and multiple metastasis to the brain, the small intestine, etc. Primary pulmonary artery sarcoma is a very rare tumor which can occur in the pulmonary trunk of a person from any age groups. This case is a very rare one with cerebral metastasis.