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Visceral myopathy 1

Synonyms
Infantile visceral myopathy; Megaduodenum and/or megacystis; Pseudoobstruction idiopathic intestinal; Visceral myopathy

Summary

Excerpted from the GeneReview: ACTG2 Visceral Myopathy
ACTG2 visceral myopathy is a disorder of smooth muscle dysfunction of the bladder and gastrointestinal system with phenotypic spectrum that ranges from mild to severe. Bladder involvement can range from neonatal megacystis and megaureter (with its most extreme form of prune belly syndrome) at the more severe end, to recurrent urinary tract infections and bladder dysfunction at the milder end. Intestinal involvement can range from malrotation, neonatal manifestations of microcolon, megacystis microcolon intestinal hypoperistalsis syndrome, and chronic intestinal pseudoobstruction (CIPO) in neonates at the more severe end to intermittent abdominal distention and functional intestinal obstruction at the milder end. Affected infants (with or without evidence of intestinal malrotation) often present with feeding intolerance and findings of non-mechanical bowel obstruction that persist after successful surgical correction of malrotation. Individuals who develop manifestations of CIPO in later childhood or adulthood often experience episodic waxing and waning of bowel motility. They may undergo frequent abdominal surgeries (perhaps related to malrotation or adhesions causing mechanical obstruction) resulting in resection of dilated segments of bowel, often becoming dependent on total parenteral nutrition (TPN).
Full text of GeneReview (by section):
Summary
Diagnosis
Clinical Characteristics
Genetically Related (Allelic) Disorders
Differential Diagnosis
Management
Genetic Counseling
Resources
Molecular Genetics
Chapter Notes
References
Authors:
Pranjali K Bhagwat
Michael F Wangler
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Available tests

15 tests are in the database for this condition.

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Clinical tests (15 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: ACT, ACTA3, ACTE, ACTL3, ACTSG, MMIHS5, VSCM, VSCM1, ACTG2
    Summary: actin gamma 2, smooth muscle

Clinical features

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Imported from Human Phenotype Ontology (HPO)

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