disease
 |__physical disorder_________
disease of anatomical entity  |
 |__nervous system disease____|
                              congenital nervous system abnormality  149 rec.
                               |__anencephaly 1 rec.
                               |   |__hydranencephaly
                               |__holoprosencephaly 12 rec.
                               |   |__chromosome 1q41-q42 deletion syndrome
                               |   |__holoprosencephaly 1
                               |   |__holoprosencephaly 2 1 rec.
                               |   |__holoprosencephaly 3 1 rec.
                               |   |__holoprosencephaly 4 2 rec.
                               |   |__holoprosencephaly 5 1 rec.
                               |   |__holoprosencephaly 6
                               |   |__holoprosencephaly 7 1 rec.
                               |   |__holoprosencephaly 8
                               |   |__holoprosencephaly 9 1 rec.
                               |   |__holoprosencephaly 11 2 rec.
                               |   |__holoprosencephaly 12 1 rec.
                               |   |__Holoprosencephaly 13, X-linked 2 rec.
                               |__lissencephaly 21 rec.
                               |   |__lissencephaly 1 1 rec.
                               |   |__lissencephaly 3 4 rec.
                               |   |__lissencephaly 5 1 rec.
                               |   |__lissencephaly 7 with cerebellar hypoplasia 1 rec.
                               |   |__lissencephaly 8 2 rec.
                               |   |__lissencephaly 9 with complex brainstem malformation 1 rec.
                               |   |__lissencephaly 10
                               |   |__microlissencephaly(+) 3 rec.
                               |   |__Norman-Roberts syndrome
                               |   |__X-linked lissencephaly 1 1 rec.
                               |   |__X-linked lissencephaly 2 3 rec.
                               |__microcephaly 111 rec.
                               |   |__autosomal dominant microcephaly
                               |   |__primary microcephaly(+) 82 rec.
                               |__periventricular nodular heterotopia 3 rec.
                               |__subcortical band heterotopia 1 rec.
                               |__tubulinopathy