Disease or Syndrome
Horner's syndrome
Hor·ner's syn·drome
Subclass of:
Autonomic nervous system disorders;
Miosis disorder
Also called:
Horner's Syndrome
Definitions related to horner syndrome:
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A condition in which one side of the face is flushed, does not produce sweat, and has a constricted pupil and drooping eyelid. It can be caused by an injury to, or paralysis of, nerves in the neck, or by a tumor.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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A syndrome associated with defective sympathetic innervation to one side of the face, including the eye. Clinical features include MIOSIS; mild BLEPHAROPTOSIS; and hemifacial ANHIDROSIS (decreased sweating)(see HYPOHIDROSIS). Lesions of the BRAIN STEM; cervical SPINAL CORD; first thoracic nerve root; apex of the LUNG; CAROTID ARTERY; CAVERNOUS SINUS; and apex of the ORBIT may cause this condition. (From Miller et al., Clinical Neuro-Ophthalmology, 4th ed, pp500-11)NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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An abnormality resulting from a lesion of the sympathetic nervous system characterized by a combination of unilateral ptosis, miosis, and often ipsilateral hypohidrosis and conjunctival injection.Human Phenotype Ontology (HPO)The Human Phenotype Ontology Project, 2021
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Interruption of sympathetic innervation to eye and face.NCI ThesaurusU.S. National Cancer Institute, 2021
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Interruption of sympathetic nerve innervation to eye and face.NICHD Pediatric TerminologyU.S. National Cancer Institute, 2021
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(horner's syndrome) Syndrome associated with defective sympathetic innervation to one side of the face, including the eye; clinical features include miosis, mild blepharoptosis, and hemifacial anhidrosis (decreased sweating); lesions of the brain stem, cervical spinal cord, first thoracic nerve root, apex of the lung, carotid artery, cavernous sinus, and apex of the orbit may cause this condition.CRISP ThesaurusNational Institutes of Health, 2006
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Horner syndrome is ptosis, miosis, and anhidrosis due to dysfunction of cervical sympathetic output. Horner syndrome results when the cervical sympathetic pathway running from the hypothalamus to the eye is disrupted. The causative lesion may be primary (including congenital) or secondary to another disorder.Merck & Co., Inc., 2020
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Horner syndrome (Horner�s syndrome) results from an interruption of the sympathetic nerve supply to the eye and is characterized by the classic triad of miosis (ie, constricted pupil), partial ptosis, and loss of hemifacial sweating (ie, anhidrosis). The term Horner syndrome is commonly used in English-speaking countries, whereas the...WebMD, 2019
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Horner syndrome is a combination of signs and symptoms caused by the disruption of a nerve pathway from the brain to the face and eye on one side of the body.Mayo Foundation for Medical Education and Research
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Horner's syndrome is a rare condition characterized by miosis (constriction of the pupil), ptosis (drooping of the upper eyelid), and anhidrosis (absence of sweating of the face). It is caused by damage to the sympathetic nerves of the face. The underlying causes of Horner's syndrome vary greatly and may include a tumor, stroke, injury,...National Center for Advancing Translational Sciences
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