File:Nerve root anomalies.png
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Classification of conjoined nerve roots.[1]
Type | General Anomaly | n-A | n-B |
---|---|---|---|
Type 1 | Aberrant courses | 1A: two pairs of nerve roots arise from a single dural sleeve | 1B: A dural sleeve arises from a low position on the dural sac |
Type 2 | Variable nerve roots in an intervertebral foramen | 2A: A foramen is unoccupied by a nerve, with the foramen above or below containing two sets of roots | 2B: A foramen contains a supernumerary set of roots |
Type 3 | Extradural anastomoses between roots in which a bundle of nerve fibres leaves one dural sleeve to enter an adjacent sleeve. May be superimposed on a type 2 |
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current | 20:04, 24 April 2021 | ![]() | 816 ร 233 (102 KB) | Jeremy (talk | contribs) | File uploaded with MsUpload |
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