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Harlequin syndrome. A man exhibiting the asymmetric symptoms of Harlequin syndrome. One half of the forehead is more red than the other. Harlequin syndrome is a condition characterized by asymmetric sweating and flushing on the upper thoracic region of the chest, neck and face. Harlequin syndrome is considered an injury to the autonomic nervous ...
Recession of the eyeball within the orbit is the most common eye abnormality observed in Parry–Romberg syndrome. It is caused by a loss of subcutaneous tissue around the orbit. Other common findings include drooping of the eyelid, constriction of the pupil, redness of the conjunctiva, and decreased sweating of the affected side of the face.
Hemifacial spasm. Hemifacial spasm ( HFS) is a rare neuromuscular disease characterized by irregular, involuntary muscle contractions ( spasms) on one side (hemi-) of the face (-facial). [ 1] The facial muscles are controlled by the facial nerve (seventh cranial nerve), which originates at the brainstem and exits the skull below the ear where ...
Prosopometamorphopsia is a visual disorder characterized by altered perceptions of faces. In the perception of a person with the disorder, facial features are distorted in a variety of ways including drooping, swelling, discoloration, and shifts of position. Prosopometamorphopsia is distinct from prosopagnosia, which is characterised by the ...
Ocular myasthenia gravis (MG) is a disease of the neuromuscular junction resulting in hallmark variability in muscle weakness and fatigability. MG is an autoimmune disease where anomalous antibodies are produced against the naturally occurring acetylcholine receptors in voluntary muscles. MG may be limited to the muscles of the eye (ocular MG ...
Central facial palsy is the paralysis of the lower half of one side of the face. This condition is often caused by a stroke. This condition is often the result of damage of the upper motor neurons of the facial nerve. The facial motor nucleus contains ventral and dorsal areas that have lower motor neurons that supply the upper and lower face ...
Horner's syndrome, also known as oculosympathetic paresis, [ 1] is a combination of symptoms that arises when a group of nerves known as the sympathetic trunk is damaged. The signs and symptoms occur on the same side (ipsilateral) as it is a lesion of the sympathetic trunk. It is characterized by miosis (a constricted pupil ), partial ptosis (a ...
Causes. There are many potential reasons why your skin may suddenly change in texture or appearance. Dry skin can be a temporary reaction to a change in your environment, a response to aging, or a ...