perimedullary en · ADJ
Etymology
From peri- + medullary.
Meanings
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(not-comparable) Surrounding a medulla (especially the medulla oblongata).
Described only relatively recently, perimedullary spinal AVMs are characterized by an intradural, leptomeningeal fistulous connection between a medullary artery and vein.
1999, Daniel L. Barrow, Spinal Vascular Malformations: