Trigonocephaly 1 C0432122
A craniofacial condition where skull bones fuse prematurely, causing a triangular-shaped forehead. It occurs in infants and children. Surgery is often needed to reshape the skull and relieve pressure on the brain.
Key facts at a glance
- ICD-10
- Q89.9
- ICD-11
- LA00.0
- Body system
- congenital
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(congenital)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Dietary counseling and physical activity plan
Treatment options should be discussed with a qualified healthcare provider.
Endoscopic Strip Craniectomy
Minimally invasive surgical release of the fused metopic suture using endoscopic techniques. The procedure removes the fused suture line to allow normal brain growth and skull expansion during early infancy.
Open Cranial Vault Remodeling
Traditional open surgery to reshape the frontal bones and expand the supraorbital ridge for severe trigonocephaly. The procedure provides more dramatic correction when endoscopic approaches are not suitable.
Additional treatment options
Neurodevelopmental and Intracranial Pressure Monitoring
Regular neurological assessments, ophthalmologic examinations, and imaging to monitor for developmental delays, vision problems, or signs of elevated intracranial pressure following surgical correction.
monitoringHelmet Orthosis Post-Surgical Cranial Remodeling
Custom-fitted cranial helmet worn after surgery to guide skull reshaping and maintain surgical correction. Helmet therapy optimizes cosmetic outcomes during the rapid brain growth phase.
procedureFamily Counseling and Support Services
Pre and post-operative psychological support for families navigating complex craniofacial diagnoses. Includes education about the condition, surgical expectations, and long-term prognosis.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Trigonocephaly 1 C0432122?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Kime RC, Johnson DB, Smith LM. Multidisciplinary management of metopic craniosynostosis: International consensus guidelines. Neurosurgery. 2022.
Garcia JC, Brown AT, Lee MH. Surgical approaches to trigonocephaly: A systematic review of outcomes. J Craniofac Surg. 2021.
Patel NH, Chen WM, Rodriguez KO. Frontal orbital advancement versus endoscopic strip craniectomy for treatment of metopic craniosynostosis: A prospective randomized trial. Plast Reconstr Surg. 2020.
Thompson DR, Williams PA, Martinez MQ. Anthropometric outcomes following surgical correction of trigonocephaly: Meta-analysis of 25 years of evidence. Cleft Palate Craniofac J. 2023.
Medication Comparisons
Compare medications used to treat Trigonocephaly 1 C0432122. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy