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A congenital or acquired positional abnormality of an organ or other part of thebody.



displacement of an organ into an adjacent body cavity or to the exterior. Ectopia may occur as a birth defect (anomaly of development) or as a result of injury to the walls of a cavity. Examples include ectopia of the urinary bladder to the exterior in case of partial closure of the anterior abdominal wall, ectopia of the spleen into the pleural cavity in case of hernia or traumatic rupture of the diaphragm, and hereditary ectopia lends, displacement of the crystalline lens of the eye.

Some types of ectopia are fatal, for example, ectopia cordis, congenital displacement of the heart outside the chest wall. Other types of ectopia can be corrected surgically.

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The approach was used with transiently transfected human cells that ectopically express the FUS (5) (fused in sarcoma) gene.
In this case it is likely that the cyst developed from the patient's ectopically placed lower right wisdom tooth.
The only significant association reported to date is the high prevalence of ectopically positioned teeth that are associated with these defects [Seow et al.
Some studies have suggested that Dmrt2 might be ectopically expressed in the gonadal ridge when Dmrt1 is inactivated, and has a similar function to Dmrt1 (Raymond et al.
The clinical Management of ectopically erupting first permanente molas.
At the same time, there is evidence that oestrogens are not necessary for the endometrium to implant itself ectopically, whereas proliferation and growth of ectopic implants need their presence.
Additionally, Hb protein was ectopically expressed in larvae using the GAL4-UAS system (Cleary and Doe, 2006) to ensure the presence of high levels of Hb protein in cells.
It has also been shown to demonstrate false negative results especially with small or ectopically located adenomas.
IK has been shown to decrease expression of an anti-proliferative, G-protein coupled receptor, vasoactive intestinal peptide receptor 1 (VPAC1) when ectopically overexpressed in NIH-3T3 cells.
Prior to the 1980s, this process occurred only within the human womb (although it rarely could form ectopically outside the uterus).
Not only can Pax genes induce eye formation ectopically on antennae, legs, and wings, but mouse Pax6 causes ectopic eyes in Drosophila.