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Living with Macrocephaly-spastic paraplegia-dysmorphism syndrome

A rare inherited condition with a large head, worsening leg stiffness, distinct facial features, seizures, and intellectual disability.

Understanding Macrocephaly-spastic paraplegia-dysmorphism syndrome

Macrocephaly-spastic paraplegia-dysmorphism syndrome is a rare syndrome with multiple differences present from birth.

The head grows larger than usual after birth, and the soft spot on top is large. Leg stiffness (spastic paraplegia) gets worse over time. People have facial differences, seizures, and intellectual disability of varying severity. It begins in childhood.

Signs & symptoms

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

  • Larger than usual head (macrocephaly)
  • Walking problems (gait disturbance)
  • Increased reflexes
  • Broad, high forehead
  • Deeply set eyes
  • Coarse facial features

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 brain and nervous system 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

    Spastic Paraplegia Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: Spastic Paraplegia 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 Spastic Paraplegia Foundation
  • 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
Would genetic testing help find the gene involved?
Which therapies can help with walking and stiffness?
How should seizures be monitored?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Recessive

GARD says inheritance appears to be autosomal recessive, which means a child inherits a changed copy of the gene from each parent. It does not name a gene.

GeneticNeurological

Also known as: fryns macrocephaly; macrocephaly with spastic paraplegia and distinctive craniofacial appearance; macrocephaly with spastic paraplegia and dysmorphism syndrome

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Macrocephaly-spastic paraplegia-dysmorphism syndromeGARD ID 16598 · 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 Macrocephaly-spastic paraplegia-dysmorphism syndrome.

Explore the Macrocephaly-spastic paraplegia-dysmorphism syndrome blog

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