Child's Nervous System

, Volume 29, Issue 3, pp 465–468 | Cite as

Venous lacunae presenting with unusual upward protrusion: an anatomic study using high-resolution magnetic resonance imaging

  • Satoshi Tsutsumi
  • Masanobu Nakamura
  • Takashi Tabuchi
  • Yukimasa Yasumoto
  • Masanori Ito
Original Paper
First Online:
Received:
Accepted:

Abstract

Purpose

This study aims to investigate the distribution and anatomic features of venous lacuna presenting with unusual upward protrusion (VLUUP) using high-resolution magnetic resonance (MR) imaging.

Methods

This retrospective study included 59 consecutive outpatients who underwent MR imaging with gadolinium. Acquired imaging data were transferred to a workstation for analysis.

Results

The 30 male and 29 female subjects were aged from 10 to 76 years. A total of 46 VLUUPs located parasagittally were identified in 36 of the 59 patients, 24 on the right, and 22 on the left; 29 patients had one VLUUP, 4 patients had two, and 3 patients had three. Most VLUUPs (93 %) were distributed in the posterior third of the frontal region and the remainder (7 %) in the middle third. There were no VLUUP found in the anterior third of the frontal region or the parietal or occipital regions. The mean longitudinal and lateral dimensions of the VLUUPs and distance from the midline to the medial margin of the VLUUP were 9.7 mm (3.1–27.6), 6.9 mm (3.1–11.5), and 14.3 mm (1.6–43.5), respectively.

Conclusions

The VLUUPs carry a higher risk of injury when making a bony window in or involving the parasagittal posterior frontal region. High-resolution MR imaging is useful for delineating the VLUUPs.

Keywords

Venous lacuna Arachnoid granulations Superior sagittal sinus 
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Notes

Acknowledgments

This work was not supported by any grant.

Ethical standards

The experiments comply with the current laws of Japan.

Conflict of interest

The authors declare no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Satoshi Tsutsumi
    • 1
  • Masanobu Nakamura
    • 2
  • Takashi Tabuchi
    • 2
  • Yukimasa Yasumoto
    • 1
  • Masanori Ito
    • 1
  1. 1.Department of Neurological SurgeryJuntendo University Urayasu HospitalUrayasuJapan
  2. 2.Division of Radiological TechnologyMedical Satellite Yaesu ClinicTokyoJapan

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