Introduction. The positioning of internal organs might be opposite in very extreme cases of mirror image twins. Situs inversus is generally an autosomal recessive genetic condition, although it can be X-linked or found in identical "mirror image" twins.. About 25% of individuals with situs inversus have an underlying condition known as primary ciliary dyskinesia (PCD). The underlying cause and genetics of situs inversus are complex. It's a condition called situs inversus, and though rare, it's probably more common than you think, affecting about one in 10,000 people. Situs inversus (also called situs transversus or oppositus) is a congenital condition in which the major visceral organs are reversed or mirrored from their normal positions. In this form of dextrocardia, the heart is simply placed further right in the thorax than is normal. Classification Dextrocardia of embryonic arrest. Situs, the Latin word for the site, describes the normal position of the cardiac atria and internal organs [1,2]. Dextrocardia with situs inversus is a condition that is characterized by abnormal positioning of the heart and other internal organs.In people affected by dextrocardia, the tip of the heart points towards the right side of the chest instead of the left side.Situs inversus refers to the mirror-image reversal of the organs in the chest and abdominal cavity. Background: Correction of hearts with situs inversus dextrocardia represent technical challenges due to mirror image anatomy and altered conduction pathway.Ventriculotomy has been the traditional approach for biventricular repair. Dextrocardia with situs inversus refers to the heart being a mirror image situated on the right side. Organs . This causes the left atrium of the heart, for example, to be on the body’s right side. Situs inversus is a congenital positional anomaly characterized by transposition of abdominal viscera, and when associated with a right-sided heart (Dextrocardia), is termed as situs inversus totalis [3]. Komai (1938) observed situs inversus in the salmon, particularly in one partner of conjoined twins and relatively fre-quently in the smaller twin. In a few cases of mirror imaging, one twin may display situs inversus where the position of internal organs is on the side opposite to their usual placement; the heart is on the right rather than the left side, for example. Several fictional characters have reversed organs. This condition is known Situs Inversus , where visceral like stomach , heart or even liver are seen on opposite side than their normal anatomical position. Situs Inversus is a unique genetic condition that occurs when the organs of the chest and abdomen form and are positioned in the exact mirror image of where they are supposed to be. frequently showing situs inversus. Abstract. [2]In the absence of congenital heart defects, individuals with situs inversus are phenotypically unimpaired, and can lead normal healthy lives, without any complications related to their medical condition. About 25% of identical twins are mirror image twins. In a few cases of mirror imaging, one twin may display situs inversus where the position of internal organs is on the side opposite to their usual placement…the heart is on the right rather than the left side, for example. About 25% of identical twins are mirror-image twins. It is commonly associated with severe defects of the heart and related abnormalities including pulmonary hypoplasia.. Dextrocardia situs inversus. Situs inversus is a condition in which the arrangement of the internal organs is a mirror image of normal anatomy. Kay's insides are the mirror image of a normal child's. 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