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Abnormal arrangement of organs or parts of the body in relation to each other.
Synonym(s): heterotaxis, heterotaxy
[hetero- + G. taxis, arrangement]


(hĕt′ər-ə-tăk′sē) or


n. pl. hetero·taxies or hetero·taxias
Abnormal arrangement of the internal organs in relation to one another.

het′er·o·tax′ic (-tăk′sĭk) adj.
References in periodicals archive ?
Situs revisited: Imaging of the heterotaxy syndrome.
In patients with heterotaxy (with polysplenia), there is a high incidence of congenital cardiac disease (3) and particularly atrial septal defects, atrio-ventricular canal defects or abnormal pulmonary venous return.
revised the classification of heterotaxy and suggested an individualised approach, as used in the patient described.
These results suggest that several genes may be involved in the pathogenesis of heterotaxy syndromes.
However, atrial isomerism that we have handled in this study is a heart disorder included to heterotaxy syndromes.
Heterotaxy syndromes/isomerism of the atrial appendages.
Although heterotaxy and polysplenia in most adult patients is asymptomatic and is detected incidentally, the role of radiologists in recognizing the complex anatomy is crucial in the clinical setting.