Orphanet rare-disease nomenclature id Orphanet_2616 (3M syndrome) is a primordial growth disorder characterized by low birth weight, reduced birth length, severe postnatal growth restriction, a spectrum of minor anomalies (including facial dysmorphism) and normal intelligence. Also known as: 3-M syndrome, Dolichospondylic dysplasia, Gloomy face syndrome, Le Merrer syndrome, Yakut short stature syndrome.