" /> Heterotaxy, visceral, 5, autosomal - CISMeF





Preferred Label : Heterotaxy, visceral, 5, autosomal;

Symbol : HTX5;

CISMeF acronym : HTX5; SIV;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : SIV; Situs inversus viscerum;

Description : Heterotaxy ('heter' meaning 'other' and 'taxy' meaning 'arrangement'), or situs ambiguus, is a developmental condition characterized by randomization of the placement of visceral organs, including the heart, lungs, liver, spleen, and stomach. The organs are oriented randomly with respect to the left-right axis and with respect to one another (Srivastava, 1997). Heterotaxy is a clinically and genetically heterogeneous disorder. For a discussion of genetic heterogeneity of visceral heterotaxy, see HTX1 (306955).;

Inheritance : Autosomal dominant;

Molecular basis : Caused by mutation in the mouse homolog of the nodal gene (NODAL, 601265.0001);

Prefixed ID : #270100;

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25/07/2025


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