A plain-language guide

Sturge-Weber syndrome

What's known, what's still uncertain, and what's actively debated, written plainly, and built only from published medical research.

Early map · 7 sourced statements Every statement names its source Updated 2026-08-04
Please read this first. This guide is a companion to your medical team, not a replacement, and it is not medical advice. Everything here is tied to published research. If something you expected is not here, it almost always means we have not mapped a source for it yet, not that it is unknown to medicine. Sturge-Weber syndrome is an early, growing map, so it will look incomplete on purpose: we would rather show less and have every line be something you can check than fill the page with claims we cannot stand behind. For anything about your own situation, your clinicians hold the full picture. How this guide is built and why.

What's Sturge-Weber syndrome?

Sturge-Weber syndrome is a rare congenital neurocutaneous disorder caused by a GNAQ gene mutation, producing capillary-venous malformations of the brain, skin, and eyes.

Features mapped5
Treatments mapped1
Published sources6
Last reviewed2026-08-04

Signs and symptoms

Arachnoid hemangiomatosis

An abnormal cluster of blood vessels over the surface of the brain (leptomeningeal capillary malformation) is a defining feature of Sturge-Weber syndrome.

Limited evidenceSource: PMID:36013378
Evidence ratingweak
Study designontology_import
Confidence (0-1)0.7
Replicationunreplicated
Supporting sourcesPMID:40604834, ORPHA:3205
Notesplain_language confirmed from PMID:40604834 via curation 2026-07-03 [llm:fable-5]. | regrounded primary ORPHA:3205 -> PMID:36013378 on 2026-07-03 [Carrie Schluter, BCPA]
Last reviewed2026-07-03

Choroidal hemangioma

A vascular tumor at the back of the eye (choroidal hemangioma) can occur in Sturge-Weber syndrome.

Limited evidenceSource: PMID:31313748
Evidence ratingweak
Study designontology_import
Confidence (0-1)0.7
Replicationunreplicated
Supporting sourcesPMID:41096092, ORPHA:3205
Notesplain_language confirmed from PMID:41096092 via curation 2026-07-03 [llm:fable-5]. | regrounded primary ORPHA:3205 -> PMID:31313748 on 2026-07-03 [Carrie Schluter, BCPA]
Last reviewed2026-07-03

Facial capillary hemangioma

A facial port-wine birthmark (a flat reddish vascular mark) is a hallmark of Sturge-Weber syndrome.

Limited evidenceSource: PMID:39986237
Evidence ratingweak
Study designontology_import
Confidence (0-1)0.7
Replicationunreplicated
Supporting sourcesPMID:39247461, ORPHA:3205
Notesplain_language confirmed from PMID:39247461 via curation 2026-07-03 [llm:fable-5]. | regrounded primary ORPHA:3205 -> PMID:39986237 on 2026-07-03 [Carrie Schluter, BCPA]
Last reviewed2026-07-03

Glaucoma

Glaucoma, raised pressure inside the eye that can damage vision, is one of the defining features of Sturge-Weber syndrome.

Limited evidenceSource: PMID:40604834
Evidence ratingweak
Study designontology_import
Confidence (0-1)0.7
Replicationunreplicated
Supporting sourcesORPHA:3205
Notesplain_language confirmed from PMID:40604834 via curation 2026-07-03 [llm:fable-5]. | regrounded primary ORPHA:3205 -> PMID:40604834 on 2026-07-03 [Carrie Schluter, BCPA]
Last reviewed2026-07-03

Seizure

Seizures are a common neurological feature of Sturge-Weber syndrome, linked to the abnormal blood vessels in the brain.

Limited evidenceSource: PMID:36958063
Evidence ratingweak
Study designontology_import
Confidence (0-1)0.7
Replicationunreplicated
Supporting sourcesPMID:42123678, ORPHA:3205
Notesplain_language confirmed from PMID:42123678 via curation 2026-07-03 [llm:fable-5]. | regrounded primary ORPHA:3205 -> PMID:36958063 on 2026-07-03 [Carrie Schluter, BCPA]
Last reviewed2026-07-03

Treatment and management

What the research describes, not a recommendation. Treatment decisions belong with your clinician.

This covers treatments that appear in the published research mapped here. Investigational and experimental therapies are not included, so their absence is a boundary of this map, not a sign they do not exist.

epilepsy surgery

For drug-resistant epilepsy in Sturge-Weber syndrome, epilepsy surgery such as hemispherectomy may be recommended.

Used to help with: Seizure.

Limited evidenceSource: PMID:41969626
The source text this rests on
“…hemispherectomy/hemispherotomy surgery is recommended for infants and children <36 months of age with drug resistant epilepsy secondary to select underlying lesional pathologies, including but not limited to hemimegaloencephaly, Rasmussen's encephalitis, Sturge-Weber…”
An excerpt quoted verbatim from the source named above, shown as recorded. The full sentence is in the linked source.
Evidence ratingweak
Confidence (0-1)0.7
Replicationunreplicated
Notesconfirmed from PMID:41969626 via curation 2026-07-03
Last reviewed2026-07-03

How to read the evidence labels

Widely acceptedSpecialists broadly agree on this.
Strong evidenceBacked by solid, repeated research.
Moderate evidenceReasonable evidence, still being confirmed.
Limited evidenceSome evidence, but not yet convincing.
Early evidenceAn early finding that needs more study.
Experts disagreeResearchers actively disagree about this.
No longer supportedLater, stronger evidence or guidance overturned this.

Where this comes from

This guide is built from 6 published source(s). Every claim above links back to one of them. Click any source ID to read the original on PubMed.

PMID:31313748 · Ocular manifestations of Sturge-Weber syndrome.
PMID:36013378 · Atlas of Nervous System Vascular Malformations: A Systematic Review.
PMID:36958063 · Seizure outcomes in children with Sturge-Weber syndrome undergoing epilepsy surgery: An individual participant data meta-analysis.
PMID:39986237 · The natural history of pediatric Sturge-Weber Syndrome: A multinational cross-sectional study.
PMID:40604834 · Sturge Weber syndrome in a multinational pediatric cohort: a systematic analysis of different types.
PMID:41969626 · American Epilepsy Society Clinical Practice Guideline: Infantile Epilepsy.

Take it further

Printed, source-linked documents built from this condition's graph — ready to bring to an appointment or attach to a coverage request. Every claim carries its published source, the same as this guide.