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  2. Postherpetic neuralgia - Wikipedia

    en.wikipedia.org/wiki/Postherpetic_neuralgia

    Postherpetic neuralgia (PHN) is neuropathic pain that occurs due to damage to a peripheral nerve caused by the reactivation of the varicella zoster virus (herpes zoster, also known as shingles). Typically, the nerve pain (neuralgia) is confined to an area of skin innervated by a single sensory nerve , which is known as a dermatome .

  3. Shingles - Wikipedia

    en.wikipedia.org/wiki/Shingles

    Motor involvement, [10] including weakness especially in "motor herpes zoster". [76] Eye involvement: trigeminal nerve involvement (as seen in herpes ophthalmicus) should be treated early and aggressively as it may lead to blindness. Involvement of the tip of the nose in the zoster rash is a strong predictor of herpes ophthalmicus. [77]

  4. Dermatome (anatomy) - Wikipedia

    en.wikipedia.org/wiki/Dermatome_(anatomy)

    A dermatome is an area of skin that is mainly supplied by afferent nerve fibres from the dorsal root of any given spinal nerve. [1] [2] There are 8 cervical nerves (C1 being an exception with no dermatome), 12 thoracic nerves, 5 lumbar nerves and 5 sacral nerves.

  5. Herpesviridae - Wikipedia

    en.wikipedia.org/wiki/Herpesviridae

    Nine herpesvirus types are known to primarily infect humans, [7] at least five of which are extremely widespread among most human populations, and which cause common diseases: herpes simplex 1 and 2 (HSV-1 and HSV-2, also known as HHV-1 and HHV-2; both of which can cause orolabial and genital herpes), varicella zoster (or HHV-3; the cause of ...

  6. Sacral ganglia - Wikipedia

    en.wikipedia.org/wiki/Sacral_ganglia

    The sacral ganglia are paravertebral ganglia of the sympathetic trunk. [1]:39 As the sympathetic trunk heads inferiorly down the sacrum, it turns medially. There are generally four or five sacral ganglia. In addition to gray rami communicantes, the ganglia send off sacral splanchnic nerves to join the inferior hypogastric plexus.

  7. Preherpetic neuralgia - Wikipedia

    en.wikipedia.org/wiki/Preherpetic_neuralgia

    Preherpetic neuralgia is a form of nerve pain specifically associated with a Shingles (herpes zoster) viral infection. This nerve pain often precedes visible indications of a Shingles infection and consequently can be a key early indicator of a need to begin preventative anti-viral drug therapy.

  8. Sacral plexus - Wikipedia

    en.wikipedia.org/wiki/Sacral_plexus

    In human anatomy, the sacral plexus is a nerve plexus which provides motor and sensory nerves for the posterior thigh, most of the lower leg and foot, and part of the pelvis. It is part of the lumbosacral plexus and emerges from the lumbar vertebrae and sacral vertebrae (L4-S4). [ 1 ]

  9. Posterior branches of sacral nerves - Wikipedia

    en.wikipedia.org/wiki/Posterior_branches_of...

    The posterior divisions of the sacral nerves are small and diminish in size as they move downward; they emerge, except the last, through the posterior sacral foramina.In some rare cases these nerves break and cause the person's legs to become weak and eventually wither away under the person's weight.