West's syndrome
Condition usually commencing between three and eight months of age characterised by infantile spasms and often associated with a change in behaviour and a slowing of development of the child.
(CaF directory of specific conditions and rare syndromes)
Williams syndrome
A genetic condition causing developmental delay. Features include facial similarities (prominent cheeks, upturned nose, wide mouth, irregular teeth) and hypersensitivity to loud noises. Children may have a heart problem and some develop hypercalcaemia (low calcium levels) within the first two years of life.
(CaF directory of specific conditions and rare syndromes)