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Proposed classification of spinal AV shunts by the author (2016)
| Type | Academic name | Subtype | Feeder, AVF, and venous drainage |
|---|---|---|---|
| I | Dural AVF | ||
| II | Intramedullary glomus AVM | ||
| III | Intramedullary juvenile AVM | ||
| IV | Perimedullary AVF | IVa | A single feeder and small AVF |
| IVb | Multiple feeders and medium AVFs | ||
| IVc | Multiple feeders and a giant AVF | ||
| V | Extradural AVF | Va | w intradural venous drainage |
| Vb | w/o intradural venous drainage |
