Holoprosencephaly 2 C1834877
A severe brain malformation linked to specific genetic factors. The forebrain does not fully develop into separate halves, leading to significant health challenges from birth.
Key facts at a glance
- ICD-10
- Q04.2
- ICD-11
- LA00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Seizures
Developmental delay
(neurologic)Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Cleft lip/palate
(neurologic)Pituitary dysfunction
(neurologic)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
Neuroimaging surveillance
Regular MRI and ultrasound imaging to track brain structure changes, ventricle size, and progression of holoprosencephaly. Essential for identifying complications like hydrocephalus or structural changes requiring intervention.
Targeted drug therapy with dose adjustment
Active treatment with regular monitoring by a healthcare provider is recommended.
Anticonvulsant therapy
Pharmaceutical management of seizure activity using age-appropriate antiepileptic medications. Selection based on seizure type and patient tolerance, with regular monitoring of efficacy and side effects.
Additional treatment options
Ventriculoperitoneal shunting
Surgical placement of a shunt system to drain excess cerebrospinal fluid from the ventricles, relieving hydrocephalus and reducing intracranial pressure that can cause developmental regression.
surgicalNeurodevelopmental therapy
Specialized physical therapy focusing on motor development, muscle tone management, and functional mobility. Includes positioning techniques, stretching, and adaptive equipment training.
physical_therapyFamily counseling and support
Psychological support for parents and caregivers addressing grief, adjustment, and coping strategies. Includes education about prognosis, connecting with support groups, and planning for long-term care needs.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Holoprosencephaly 2 C1834877?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
Compare medications used to treat Holoprosencephaly 2 C1834877. 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