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Spontaneous total thrombosis of distal superior cerebellar artery aneurysm

H Ohta1, N Sakai, I Nagata

  • 1Department of Neurosurgery, National Cardiovascular Center, Suita, Osaka, Japan.

Acta Neurochirurgica
|October 27, 2001
PubMed

Insights

This study details a rare case of a completely self-clotted aneurysm in the superior cerebellar artery (SCA). This spontaneous thrombosis of a distal SCA aneurysm was confirmed via imaging and follow-up angiography.

Area of Science:

  • Neurology
  • Vascular Surgery
  • Radiology

Background:

  • Cerebral aneurysms, particularly those in the superior cerebellar artery (SCA), pose significant clinical challenges.
  • Distal SCA aneurysms are less common and present unique diagnostic and therapeutic considerations.

Observation:

  • A patient presented with transient cerebellar ataxia, with initial angiography revealing multiple aneurysms.
  • Imaging confirmed a thrombosed mass in the right cerebellar peduncle, corresponding to the distal SCA aneurysm.
  • No filling of the right SCA was observed on angiography from its origin.

Findings:

  • Complete spontaneous thrombosis of a non-giant distal superior cerebellar artery aneurysm is reported.
  • Follow-up angiography demonstrated no recanalization of the thrombosed SCA aneurysm 9 months post-procedure.
  • This represents the first reported case of a total spontaneously thrombosed non-giant distal SCA aneurysm.

Implications:

  • This case expands the understanding of cerebral aneurysm behavior and natural history.
  • It highlights the potential for spontaneous resolution in select cases of distal SCA aneurysms.
  • Further research may elucidate the mechanisms and predictors of spontaneous thrombosis in cerebral aneurysms.

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