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Holoprosencephaly 4 C1840528

Published: July 22, 2026Updated: August 20, 2026

A severe brain malformation in which the forebrain fails to properly divide. It is linked to particular genetic factors and presents significant developmental challenges.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

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

1

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

1

Developmental milestone tracking

Systematic assessment of cognitive, motor, and social development at regular intervals using standardized tools. Allows for early identification of delays requiring intervention and measures progress over time.

monitoring
2

Pharmacological management with first-line agents

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Spasticity management

Pharmacological treatment of increased muscle tone using oral muscle relaxants or intrathecal baclofen pumps. Reduces discomfort, improves positioning, and facilitates hygiene care.

medication

Additional treatment options

Aquatic therapy program

Water-based therapy utilizing buoyancy to support movement and reduce joint stress. Improves range of motion, muscle strength, and provides sensory input in a low-gravity environment.

physical_therapy

Sensory integration therapy

Occupational therapy focused on processing and responding to sensory information. Addresses tactile defensiveness, vestibular issues, and helps develop appropriate responses to environmental stimuli.

complementary

Orthopedic intervention

Surgical management of skeletal complications including hip subluxation, scoliosis, and contractures. May involve soft tissue releases, osteotomies, or spinal fusion depending on specific needs.

surgical

When 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.

Q

What is Holoprosencephaly 4 C1840528?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Holoprosencephaly 4 C1840528. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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