A neonate, on examination shows features of hypotonia and the following feature was observed. Probable chromosomal anomoly
Features of Down's syndrome:-

Flat face
Hypotonia at birth
Increased Intercanthal distance
Epicanthal folds
Low set ears
protruding spots
Iris - Brushfield spots
Blue dot Cataract
Simian crease (Single palmar crease)
Sandal gap.
Patau syndrome
Edward's syndrome
Down's syndrome
Noonan syndrome