De novo formation and rupture of an aneurysm: Case report

Takao Yasuhara, Takashi Tamiya, Kenji Sugiu, Satoshi Inoue, Takashi Ohmoto

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


The authors describe a case of de novo formation and rupture of an aneurysm located at the junction of the left internal carotid artery and the superior hypophyseal artery in a middle-aged woman 2 months after another aneurysm, located on the anterior communicating artery, had been clipped. This case is rare because of the short interval between the last angiographic study performed at the first operation and the diagnosis of the de novo aneurysm; in this case the interval was only 47 days, compared with other cases in the literature in which the intervals were 3 to 34 years. Aneurysms can enlarge considerably in 2 to 4 weeks and can rupture at or soon after their formation. This case provides insight into aneurysm formation and rupture.

Original languageEnglish
Pages (from-to)697-700
Number of pages4
JournalJournal of neurosurgery
Issue number3
Publication statusPublished - Sept 2002


  • Aneurysm formation
  • De novo aneurysm
  • Superior hypophyseal artery

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology


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