congenital Horner syndrome
Findings
No curated finding names congenital Horner syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
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.
Definition from the Mondo Disease Ontology (MONDO:0007735), read 2026-09-29. CC BY 4.0.
Where it sits
- A kind of
Other names
2 names
Resolves to: congenital Horner syndrome
- Also called
- congenital Claude-Bernard-Horner syndromecongenital Horner syndrome (disease)