Intracerebral hemorrhage caused by a neoplastic aneurysm from small-cell lung carcinoma: case report

Neurosurgery. 1993 Jan;32(1):124-6. doi: 10.1227/00006123-199301000-00019.


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.

Publication types

  • Case Reports

MeSH terms

  • Aneurysm, Ruptured / pathology
  • Aneurysm, Ruptured / surgery*
  • Brain Neoplasms / pathology
  • Brain Neoplasms / secondary*
  • Brain Neoplasms / surgery
  • Carcinoma, Small Cell / pathology
  • Carcinoma, Small Cell / secondary*
  • Carcinoma, Small Cell / surgery
  • Cerebral Arteries / pathology
  • Cerebral Arteries / surgery
  • Humans
  • Intracranial Aneurysm / pathology
  • Intracranial Aneurysm / surgery*
  • Intracranial Embolism and Thrombosis / pathology
  • Intracranial Embolism and Thrombosis / surgery
  • Lung Neoplasms / pathology
  • Lung Neoplasms / surgery*
  • Male
  • Middle Aged
  • Neoplastic Cells, Circulating*