Werdnig-Hoffmann disease
- Synonyms
- HMN (Hereditary Motor Neuropathy) Proximal Type I; Muscular atrophy, infantile; Proximal spinal muscular atrophy, type 1; SMA I; SMA, infantile acute form; Spinal muscular atrophy 1
- Modes of inheritance
- Autosomal recessive inheritance (Orphanet)
Summary
Excerpted from the GeneReview:- Full text of GeneReview (by section):
- Summary
- GeneReview Scope
- Diagnosis
- Clinical Characteristics
- Genetically Related (Allelic) Disorders
- Differential Diagnosis
- Management
- Genetic Counseling
- Resources
- Molecular Genetics
- Chapter Notes
- References
- Authors:
- Thomas W Prior
- Meganne E Leach
- Erika Finanger
- view full author information
Available tests
Check Related conditions for additional relevant tests.
Clinical features
Help- Abnormality of head or neck
- Tongue fasciculations
Tongue fasciculations
- MedGen UID: 65987
- Concept ID: C0239548
- Finding: Finding
Abnormality of head or neck
- Tongue fasciculations
- Abnormality of prenatal development or birth
- Decreased fetal movement
Decreased fetal movement
- MedGen UID: 68618
- Concept ID: C0235659
- Finding: Finding
Abnormality of prenatal development or birth
- Decreased fetal movement
- Abnormality of the cardiovascular system
- Atrial septal defect
Atrial septal defect
- MedGen UID: 6753
- Concept ID: C0018817
- Finding: Congenital Abnormality
Abnormality of the cardiovascular system
- Ventricular septal defect
Ventricular septal defect
- MedGen UID: 42366
- Concept ID: C0018818
- Finding: Congenital Abnormality
Abnormality of the cardiovascular system
- Atrial septal defect
- Abnormality of the musculoskeletal system
- EMG: neuropathic changes
EMG: neuropathic changes
- MedGen UID: 867363
- Concept ID: C4021727
- Finding: Finding
Abnormality of the musculoskeletal system
- Generalized hypotonia
Generalized hypotonia
- MedGen UID: 346841
- Concept ID: C1858120
- Finding: Finding
Abnormality of the musculoskeletal system
- Poor head control
Poor head control
- MedGen UID: 322809
- Concept ID: C1836038
- Finding: Finding
Abnormality of the musculoskeletal system
- Proximal amyotrophy
Proximal amyotrophy
- MedGen UID: 342591
- Concept ID: C1850794
- Finding: Disease or Syndrome
Abnormality of the musculoskeletal system
- Proximal muscle weakness in lower limbs
Proximal muscle weakness in lower limbs
- MedGen UID: 356423
- Concept ID: C1866010
- Finding: Finding
Abnormality of the musculoskeletal system
- Spinal muscular atrophy
Spinal muscular atrophy
- MedGen UID: 7755
- Concept ID: C0026847
- Finding: Disease or Syndrome
Abnormality of the musculoskeletal system
- EMG: neuropathic changes
- Abnormality of the nervous system
- Areflexia
Areflexia
- MedGen UID: 115943
- Concept ID: C0234146
- Finding: Finding
Abnormality of the nervous system
- Areflexia
- Abnormality of the respiratory system
- Recurrent respiratory infections
Recurrent respiratory infections
- MedGen UID: 812812
- Concept ID: C3806482
- Finding: Finding
Abnormality of the respiratory system
- Respiratory failure
Respiratory failure
- MedGen UID: 257837
- Concept ID: C1145670
- Finding: Disease or Syndrome
Abnormality of the respiratory system
- Respiratory insufficiency
Respiratory insufficiency
- MedGen UID: 11197
- Concept ID: C0035229
- Finding: Pathologic Function
Abnormality of the respiratory system
- Recurrent respiratory infections
- ACMG ACT, 2020American College of Medical Genetics and Genomics, Newborn Screening ACT Sheet, Exon 7 Deletion (Pathogenic Variant) in Survival Motor Neuron Gene (SMN1), Spinal Muscular Atrophy (SMA), 2020
- ACMG ACT, 2018ACMG Carrier Screening ACT Sheet Spinal Muscular Atrophy (SMA)
- EuroGenetest, 2012Clinical utility gene card for: proximal spinal muscular atrophy.
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