Review Article
Extrinsic Factors Influencing Fetal Deformations and Intrauterine Growth Restriction
Table 1
Types of congenital anomalies.
| Malformations | Disruptions | Deformations | Dysplasias |
| (i) Morphologic defects resulting from intrinsically abnormal developmental processes | (i) Breakdown of, or interference with, an originally normal developmental process | (i) Abnormalities of form or position of a part of the body caused by nondisruptiveme chanical forces | (i) Abnormal structure because the tissues, from which individual structures are formed, are abnormal | (ii) Occur early in embryogenesis | (ii) May occur at any time during gestation | (ii) Usually develop during the second half of pregnancy | (ii) Often due to single abnormal genes |
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