cloverleaf skull syndrome

clo·ver·leaf skull syn·drome

[MIM*148800] intrauterine bone dysplasia and synostosis of the coronal and lambdoid sutures of the cranium producing a trilobar head shape, sometimes associated with exophthalmos, and various craniofacial and long-bone anomalies; the condition is sporadic. Synonym(s): kleeblattschädel deformity, kleeblattschädel
A condition characterised by a deformity of the cranial vault in which a frontal film demonstrates a tri-lobed appearance caused by premature closure of the sutures, which is accompanied by hydrocephaly
Aetiology Thanatophoric dwarfism [MIM 148800], accompanied by a prominent forehead, depressed nasal bridge, shortened limbs, bowing of femora, epiphyseal cupping, flattened vertebral bodies, achondroplasia-like pelvis, often, but not invariably, associated with mental retardation