ectopia (n.), ectopic (adj.)

synonym: ectopy
https://doi.org/10.1351/goldbook.10633

Abnormal location or malpositioning of an organ or body part, usually congenital.

Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 746 [Terms] [Paper]