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The trigeminal nerve is a paired cranial nerve that has three major branches: the ophthalmic nerve (V 1), the maxillary nerve (V 2), and the mandibular nerve (V 3). One, two, or all three branches of the nerve may be affected. Trigeminal neuralgia most commonly involves the middle branch (the maxillary nerve or V 2) and lower branch (mandibular ...
Paresthesia is an abnormal sensation of the skin (tingling, pricking, chilling, burning, numbness) with no apparent physical cause. [ 1 ] Paresthesia may be transient or chronic, and may have many possible underlying causes. [ 1 ] Paresthesias are usually painless and can occur anywhere on the body, but most commonly occur in the arms and legs.
Palilalia (from the Greek πάλιν (pálin) meaning "again" and λαλιά (laliá) meaning "speech" or "to talk"), [1] a complex tic, is a language disorder characterized by the involuntary repetition of syllables, words, or phrases. It has features resembling other complex tics such as echolalia or coprolalia, but, unlike other aphasias ...
Tardive dyskinesia (TD) is an iatrogenic disorder that results in involuntary repetitive body movements, which may include grimacing, sticking out the tongue or smacking the lips, [1] which occurs following treatment with medication. [6][7] Additional motor symptoms include chorea or athetosis. [1] In about 20% of people with TD, the disorder ...
A tic is a sudden and repetitive motor movement or vocalization that is not rhythmic and involves discrete muscle groups. [ 1 ][ 2 ][ 3 ] It is typically brief and may resemble a normal behavioral characteristic or gesture. [ 4 ] Tics can be invisible to the observer, such as abdominal tensing or toe crunching.
Myoclonus. Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular. Myoclonus (myo- "muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a disease. It belongs to the hyperkinetic movement disorders ...
Neurology. Facial nerve paralysis is a common problem that involves the paralysis of any structures innervated by the facial nerve. The pathway of the facial nerve is long and relatively convoluted, so there are a number of causes that may result in facial nerve paralysis. [2] The most common is Bell's palsy, [3][4] a disease of unknown cause ...
True leukonychia: These white spots originate from the nail matrix (where your nail grows) and appear on the nail plate, says Dr. Lal. These spots do not disappear with pressure. Pseudoleukonychia ...