Tumors Provoke Inflammation and Perineural Microlesions at Adjacent Peripheral Nerves

Perineural spread in head and neck tumors.

Perineural spread is the dissemination of some types of head and neck tumors along nervous structures. Perineural spread has negative repercussions on treatment because it requires more extensive resection and larger fields of irradiation. Moreover, perineural spread is associated with increased local recurrence, and it is considered an independent indicator of poor prognosis in the TNM classif...

Perineural spread in head and neck tumors

Injuries to Peripheral Nerves

the proximal to the distal segment. These cells may be formed by the breaking up of the myelon sheath, and it is asserted by some of the exponents of centrifugal regeneration that it is by means of these newly-organized myelon fragments that a chemical attraction is created which enables the new axons to find their way into the partly obliterated distal cord. All this doubt and speculation make...

O 30: Peripheral Nervous System Diseases and Inflammation

Inflammatory neuropathies may be due to infection (with a specific casual agent identified) including Lyme disease, HIV, Leprosy, Herpes Zoster, Hepatitis B & C. The other group of are Autoimmune or possibly infectious (but with no specific causal infectious agent identified) including sarcoidosis, Guillain-Barre syndrome/ acute inflammatory demyelinating polyneuropathy ( AIDP), chronic in...

Normal and sonographic anatomy of selected peripheral nerves. Part II: Peripheral nerves of the upper limb

The ultrasonographic examination is frequently used for imaging peripheral nerves. It serves to supplement the physical examination, electromyography, and magnetic resonance imaging. As in the case of other USG imaging studies, the examination of peripheral nerves is non-invasive, well-tolerated by patients, and relatively inexpensive. Part I of this article series described in detail the chara...