Horner syndrome congenital Horner syndrome https://github.com/monarch-initiative/mondo/issues/6744 https://www.malacards.org/card/horner_syndrome_congenital GARD:0006670 congenital Horner syndrome HP:0006837 Congenital Horner syndrome is a rare neurological disorder characterized by relative pupillary miosis and blepharoptosis, evident at birth, caused by interruption of the oculosympathetic innervation at any point along the neural pathway from the hypothalamus to the orbit. Often additional symptoms, such as enophthalmos, facial anhidrosis, iris heterochromia, conjunctival congestion, transient hypotonia and/or pupillary dilation lag, may be present. Association with birth trauma, neoplasms or vascular malformations has been reported. MONDO:0007735 MEDGEN:327111 Orphanet:91413 OMIM:143000 MESH:C564178 UMLS:C1840475 congenital Horner syndrome (disease) congenital Claude-Bernard-Horner syndrome congenital Horner syndrome (disease)