partial trisomy/tetrasomy of chromosome 18
A chromosomal disorder characterized by the presence of extra copy/copies of part of chromosome 18.
MONDO:0000762
syndrome caused by partial chromosomal duplication
is_a
MONDO:0700125
chromosome 18 disorder
is_a
partial duplication/triplication of chromosome 18
exact
partial trisomy/tetrasomy of chromosome type 18
exact