Is There a Connection Between Perivascular Space and Subarachnoid Space?

ŞAYLISOY S., Simsek S., Adapinar B.

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, cilt.38, sa.1, ss.33-35, 2014 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 38 Sayı: 1
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1097/rct.0b013e3182a9a45a
  • Dergi Adı: JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.33-35
  • Anahtar Kelimeler: perivascular space, computed tomography, subarachnoid space, VIRCHOW-ROBIN SPACES
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Perivascular spaces (PVSs) surrounding the walls of arteries, arterioles, and venules do not directly communicate with subarachnoid spaces. There are a few reports exhibiting subarachnoid hemorrhage (SAH) and intracerebral hematomas extending to the PVSs by leakage of the leptomeninges that surround arteries. In this report, we present 4 patients of whom 3 had SAH extending into the PVSs in the bilateral basal ganglia and 1 had extension of contrast medium to the PVSs after injection of the contrast medium into the lumbar subarachnoid space. The hemorrhage extending to the PVSs in our 3 patients with SAH could be explained by leakage of the leptomeninges surrounding the arteries. However, how the contrast medium extends to the PVSs is not clear. We think that, although speculative, incomplete or complete defect at the leptomeninges surrounding the arteries resulting in direct continuity between the subarachnoid space and the PVS allows that blood or contrast media to extend to the PVSs.