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Surgical Treatment of an Endolymphatic Sac Tumor
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Temporal lobe tumors modify local venous drainage.

Serena Tola1, Alberto Parenti1, Alice Esposito1

  • 1Department of Neurosurgery, Careggi University Hospital, Department of NEUROFARBA, University of Florence, Florence, Italy.

Clinical Neurology and Neurosurgery
|August 30, 2023
PubMed
Summary

Primary brain tumors are associated with alterations in the Superficial Middle Cerebral Vein (SMCV) outflow. Specifically, tumor growth correlates with absent or atrophic SMCV, suggesting an impact on local cerebral venous drainage.

Keywords:
Brain NeoplasmsCerebral VeinsControl GroupsDrainageRetrospective Studies

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Area of Science:

  • Neurosurgery
  • Vascular Neurology
  • Oncology

Background:

  • The Superficial Middle Cerebral Vein (SMCV) is crucial for cerebral venous outflow and often encountered during neurosurgery.
  • Pathological conditions, including intracranial tumors, can disrupt normal venous drainage patterns.
  • Understanding anatomical variants of the SMCV is vital for surgical planning and interpreting neuroimaging.

Purpose of the Study:

  • To investigate the hypothesis that intracranial tumor growth alters cerebral venous outflow.
  • To analyze anatomical variants of the Superficial Middle Cerebral Vein (SMCV) in patients with intracranial tumors.
  • To explore the association between SMCV variants and tumor histology.

Main Methods:

  • Retrospective analysis of 120 surgical patients (60 with intracranial tumors, 60 with cerebral aneurysms).
  • Classification of SMCV variants into Type 1 (normotrophic), Type 2A (hypotrophic), and Type 2B (absent/atrophic).
  • Statistical analysis (chi-squared test) to determine correlations between SMCV types and tumor presence/histology.

Main Results:

  • A significant positive correlation was found between primary brain tumors and Type 2B (absent/atrophic) SMCV.
  • Tumor presence was also significantly correlated with any alteration in SMCV (Type 2).
  • The findings suggest that primary brain tumors impact local cerebral venous outflow.

Conclusions:

  • Primary brain tumors appear to alter the local venous network, specifically the Superficial Middle Cerebral Vein (SMCV).
  • Further research is needed to elucidate the clinical and oncological implications of these SMCV alterations.