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Living with Microcephaly-facio-cardio-skeletal syndrome, Hadziselimovic type

A rare syndrome with a small head, heart defects, differences in the face and thumbs, slow growth, and developmental delay.

Understanding Microcephaly-facio-cardio-skeletal syndrome, Hadziselimovic type

Microcephaly-facio-cardio-skeletal syndrome, Hadziselimovic type is a rare syndrome with a small head, heart malformations, and facial and bone differences.

It causes slow growth that starts before birth, which can mean low birth weight and short stature. People also have low muscle tone, developmental delay, and intellectual disability. Features include certain facial differences, heart malformations such as tetralogy of Fallot, and small thumbs. Signs are seen in the newborn period or infancy.

Signs & symptoms

GARD lists these among the less common symptoms; its summary also describes the features above:

  • Smaller-than-average head size (microcephaly)
  • Underdeveloped corpus callosum (the bridge between brain halves)
  • Eyes set unusually close together
  • Absent anus

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, genetic specialists and heart and blood vessel specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Genetic specialists (geneticists); Heart and blood vessel specialists (cardiologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
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 rare disease patient organizations for support
  • 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
Which heart specialist should follow my child's heart condition?
What supports can help with growth and development?
Is genetic testing available for this syndrome?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive

Changes in genes (also called variants) cause this syndrome, and it is inherited in an autosomal recessive way. This means a child inherits a changed copy of the gene from each parent.

Genetic

Also known as: hadziselimovic syndrome; microcephalus facio-cardio-skeletal syndrome hadziselimovic type; microcephaly faciocardioskeletal syndrome; microcephaly-faciocardioskeletal syndrome

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Microcephaly-facio-cardio-skeletal syndrome, Hadziselimovic typeGARD ID 17116 · 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 Microcephaly-facio-cardio-skeletal syndrome, Hadziselimovic type.

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