alloplasia


het·er·o·pla·si·a

(het'ĕr-ō-plā'zē-ă), 1. Development of cytologic and histologic elements that are not normal for the organ or part in question, as the growth of bone in a site where there is normally fibrous connective tissue. 2. Malposition of tissue or a part that is otherwise normal, as a ureter that develops at the lower pole of a kidney. Synonym(s): alloplasia [hetero- + G. plasis, a forming]

alloplasia

An older term, which is regarded as a synonym for:
(1) Ectopia; 
(2) Heteroplasia (i.e., metaplasia or dysplasia).