extraaxial

ex·tra·ax·i·al

(eks'tră-aks'ē-ăl),
Off the axis; applied to intracranial lesions that do not arise from the brain itself.
Farlex Partner Medical Dictionary © Farlex 2012

extraaxial

adjective Outside the CNS
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

ex·tra·ax·i·al

(eks'tră-aks'ē-ăl)
Off the axis; applied to intracranial lesions that do not arise from the brain itself.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
It typically affects the base of skull, the vertebral bodies, and the sacrococcygeal bone, but may be rarely seen in the extraaxial skeleton, such as intervertebral discs and presacral soft tissue.
The CT scan finding shows that 50% cases had intraaxial lesions and 40% had extraaxial lesions, while 10% had both (Figure 1).
Arachnoid cysts are extraaxial and displace the brain cortex from the adjacent skull [4].
These frequently arise in an intradural extraaxial location anterior to the cervical-thoracic spinal cord while intracranial cysts have a tendency to be infratentorial.
Axial and sagittal T1WI (A and B) and axial and coronal T2WI (C and D) show a large extraaxial lobulated smooth marginated high signal intensity pattern cystic lesion in the suprasellar region with its regional extension.
Brain abscess complications include local mass effect with intracranial herniation, hydrocephalus, meningitis, extra-axial fluid collection, sinus thrombosis, infarct, cranial nerve involvement, ventriculitis, and extraaxial fluid collections (empyema and hygroma).
Imaging features of extraaxial musculoskeletal tuberculosis.
Foi realizada tomografia computadorizada que evidenciou a presenca de massa extraaxial em cortex frontal direito de aproximadamente dois centimetros de diametro, com areas de calcificacao, efeito de massa, desvio da fissura longitudinal a direita, com realce apos aplicacao do meio de contraste (Figura 1).