Crane-Heise syndrome

Crane-Heise syndrome is an extremely rare, lethal multiple congenital anomaly syndrome first described by Crane and Heise in 1981. The condition is characterized by severe skeletal abnormalities, craniofacial defects, and other developmental anomalies that are typically incompatible with life. Key clinical features include absent or severely deficient calvarial ossification (poor bone formation of the skull), facial dysmorphism, cleft lip and/or palate, cervical vertebral abnormalities (including fusion or absence of cervical vertebrae), clavicular hypoplasia or absence, and limb anomalies. The craniofacial features may include a markedly underdeveloped skull vault, widely spaced eyes, and a flat nasal bridge. The syndrome primarily affects the skeletal system, particularly the skull, spine, and clavicles, as well as craniofacial structures. Additional features that have been reported include intrauterine growth restriction and other organ system involvement. Due to the severity of the skeletal and craniofacial malformations, affected infants are typically stillborn or die shortly after birth. Given the extreme rarity of Crane-Heise syndrome, with only a handful of cases reported in the medical literature, there is limited understanding of its precise molecular basis. No specific treatment or cure exists for this condition; management, when applicable, is supportive and palliative. Genetic counseling is recommended for affected families to discuss recurrence risks and prenatal diagnostic options in future pregnancies.

Common questions about Crane-Heise syndrome