On imaging scans, benign tumour of peripheral nerve presents as well-defined mass, usually fusiform in shape located within a nerve, isointense to surrounding muscles on T1-weighted images, and hyperintense on T2-weighted images [ 19– 219.
Well-defined perineural pathways along the nerve fascicles of the autonomic nervous system have been identified with careful pathologic dissection.
The patients were diagnosed based on well-defined clinical findings, including the results of nerve conduction studies in a few cases where the diagnosis was in doubt.
Optic nerve sheath meningioma is a solid, tubular, well-defined mass which presents uniform intense enhancement after contrast compared with the non-enhancing optic nerve ("tram-track sign" on axial images and "bull's eye" on coronal images) [13, 14].
Virtually all pertinent medical textbooks claim that the entire (palmar and dorsal) surface of the hand is supplied by three (median, radial, and ulnar) nerves and that each of these covers a well-defined area.
Researchers study rodent whiskers because the sensory nerves at the base of each whisker connect to well-defined structures in the cortex or outer layer of the brain – so-called barrel columns, because they're shaped like a barrel.
Stimulation of individual nerves, before and after parasympathetic blockade, results in regionally, well-defined myocardial responses.
This well-defined MVI localization was impaired in the muscle fibers of animals subjected to a sciatic nerve cut (2-month denervated muscles) as well as in muscle nerve termini obtained from a rat model of ALS.
Our findings offer new insights into the design of nanofiber-based scaffolds for nerve injury repair and will provide new guidelines for the construction of well-defined neuronal network architecture (the so-called neural circuits).
On CT, retroperitoneal neurofibromas are well-defined, round, hypodense, inhomogeneous solid masses, which may be seen along the expected course of the nerve.
