Test your knowledge: nerve root anomalies
What could be possible implications for clinical practice of these nerve root anomalies? You can find an interesting article about nerve root anomalies at our website.
(Image taken from: intechopen.com)
The diagnosis of nerve root anomalies could be difficult because we often think in patterns of radicular sensations and motoric failure due to compression at one level.
The standard knowledge about key muscles and dermatomal patterns of the spinal chord level is widespread, but sometimes the anomalies are presenting a difficult path of sensations due to nerve root compression.
It is important to be aware of the types of anomalies below, so that you can refer a patient with a severe motor radicular problem to the neurosurgeon/neurologist for a consult and/or MRI:
Type I: intradural anastomosis between rootlets.
Type II: anomalous origin of nerve root, including: a) cranial origin; b) caudal origin; c) combination of cranial and caudal origin affecting more adjacent roots; d) conjoined nerve roots.
Type III: extradural anastomoses between nerve roots.
Type IV: extradural division of the nerve roots.
Click here for an interesting free full text article on nerve root anomalies.