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Living with Mandibulofacial dysostosis-macroblepharon-macrostomia syndrome

A rare genetic condition from birth with distinct facial features, including wide eyelids and a wide mouth.

Understanding Mandibulofacial dysostosis-macroblepharon-macrostomia syndrome

Mandibulofacial dysostosis-macroblepharon-macrostomia syndrome is a rare developmental condition affecting the face, eyelids, and mouth.

Features include very long eyelid openings (macroblepharon), eyelids that turn outward (ectropion), widely spaced eyes, and a wide mouth with a thin upper lip. Other features may include large soft spots on the skull, thick eyebrows, differences in the teeth, and a small blood vessel growth (capillary hemangioma). It is present in newborns and infants.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet, but its summary describes these:

  • Long eyelid openings (macroblepharon)
  • Outward-turned eyelids (ectropion)
  • Widely spaced eyes
  • Wide mouth (macrostomia)
  • Ears rotated backward
  • Large soft spots on the skull (fontanelles)

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include bone and joint specialists, ear, nose, and throat specialists, eye disease specialists and genetic specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    World Craniofacial Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Ear, nose, and throat specialists (otolaryngologists); Eye disease specialists (ophthalmologists); Genetic specialists (geneticists)
Expert care
Expert lists: World Craniofacial Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with World Craniofacial Foundation and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Is genetic testing available for this syndrome?
Which specialists should care for the eyelids and eyes?
Does my child need hearing, dental, or feeding checks?

Quick facts

Symptoms usually startNewborn and as an Infant

Changes in genes (also called variants) cause this condition. GARD does not name a specific gene.

Genetic

Also known as: macroblepharon-ectropion-hypertelorism-macrostomia syndrome; macroblepharon, ectropion, hypertelorism, and macrostomia; mandibulofacial dysostosis with macroblepharon and macrostomia; verloes-lesenfants syndrome

Patient organizations

Source: NIH GARD · Mandibulofacial dysostosis-macroblepharon-macrostomia syndromeGARD ID 17547 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Mandibulofacial dysostosis-macroblepharon-macrostomia syndrome.

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