Intracerebral hemorrhage caused by a neoplastic aneurysm from small-cell lung carcinoma: case report.
A neoplastic cerebral aneurysm from lung cancer is an extremely rare occurrence despite its high metastatic potential to the brain. We report a neoplastic cerebral aneurysm from small-cell lung carcinoma that caused an intracerebral hematoma. A 63-year-old man underwent an urgent craniotomy for a massive intracerebral hematoma. After evacuation of the hematoma, an anomalous artery was found on the wall and a biopsy was done. The histological examination revealed that the artery was filled with neoplastic cells, and a part of the vessel wall was distended, forming an aneurysm. The histological feature of the tumor cells was consistent with small-cell lung carcinoma, which was disclosed in the left hilus.
Sapporo Azabu Neurosurgical Hospital, Japan.
J
J
Murata
Y
Y
Sawamura
A
A
Takahashi
H
H
Abe
H
H
Saitoh
D017542:Aneurysm, Ruptured / Q000473:pathology / Q000601:surgery*; D001932:Brain Neoplasms / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D018288:Carcinoma, Small Cell / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D002536:Cerebral Arteries / Q000473:pathology / Q000601:surgery; D006801:Humans; D002532:Intracranial Aneurysm / Q000473:pathology / Q000601:surgery*; D002542:Intracranial Embolism and Thrombosis / Q000473:pathology / Q000601:surgery; D008175:Lung Neoplasms / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009360:Neoplastic Cells, Circulating