We report on a female patient born of consanguineous parents (first co
usins) who presented short stature, hypotonia, joint laxity, delayed p
sychomotor development, microcephaly, sparse scalp hair, retarded bone
age, coarse lace, thick eyebrows, long eyelashes, hypertrichosis on t
he back of the trunk, hypoplasia of distal phalanges of digits of the
hands and feet, and hypoplastic fingernails of the fifth toe. These fi
ndings are consistent with the Coffin-Siris syndrome, the etiology of
which is not yet defined. The presence of parental consanguinity sugge
sts autosomal recessive inheritance.