subhead only; congenital & structural only: does not include abnormal function ( = /physiopathology or disease heading); includes "deformity", "malformation", "anomalous", includes agenesis, aplasia, atresia, ectopy, hypoplasia, etc.; includes more or less than the normal number of organs (as one ureter, six fingers); see MeSH scope note in Introduction; indexing policy: Manual 19.8.1; DF: /abnorm or /AB
Scope Note
Used with organs for congenital defects producing changes in the morphology of the organ. It is used also for abnormalities in animals.
Entry Version
ABNORM
Abbreviation
AB
Entry Term(s)
agenesis
anomalies
aplasia
atresia
birth defects
congenital defects
defects
deformities
hypoplasia
malformations
Online Note
search policy: Online Manual; use: main heading/AB or AB (SH) or SUBS APPLY AB
History Note
66; used with Category A 1966-74; A1-9 & A13-15 1975-88; A1-9, A13-15 & B2 1989; A1-10, A13-14, A16 & B2 1990 forward
