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Living with Diaphragmatic defect-limb deficiency-skull defect syndrome

A very rare condition reported in one family, with a hole in the diaphragm, small lungs, and limb and skull differences.

Understanding Diaphragmatic defect-limb deficiency-skull defect syndrome

Diaphragmatic defect-limb deficiency-skull defect syndrome is a very rare condition that combines a diaphragmatic hernia with severely underdeveloped lungs and other differences.

It has been reported only once, in four pregnancies of one couple. Features include a hernia in the diaphragm, small lungs, a belly wall opening, severely underdeveloped limbs, joined toes, an extra spleen, and a skull that did not harden fully. The mix varied between the four. It may be autosomal recessive or due to a gene change in some of a parent's egg or sperm cells.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Hernia in the diaphragm
  • Underdeveloped lungs
  • Underdeveloped arms and legs
  • Differences in the forearm and lower leg bones
  • Differences in the shoulder blade and thigh bone
  • Joined toes (syndactyly)

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 digestive system 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
Digestive system specialists (gastroenterologists); 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
Can genetic counseling help us understand the chance of this happening again?
Which prenatal ultrasound findings are important?
Which specialists should be consulted?

Quick facts

Symptoms usually startduring Pregnancy
InheritanceAutosomal Recessive

GARD says changes in genes cause this condition. It may be autosomal recessive, or it may come from a gene change in some of a parent's egg or sperm cells (gonadal mosaicism).

GeneticGastrointestinal

Also known as: diaphragmatic defects, limb deficiencies, and ossification defects of skull; froster syndrome; froster-huch syndrome

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Diaphragmatic defect-limb deficiency-skull defect syndromeGARD ID 2397 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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