Schwartz-jampel syndrome: report of five cases

Stüve-Wiedemann syndrome in a neonate

We describe a female neonate with Stüve-Wiedemann syndrome. The facial dysmorphism, joint contracture, distinctive skeletal changes, and myotonic discharges on electromyogram raised a suspicion of the rare autosomal recessive syndrome, which was later confirmed on molecular analysis of leukemia inhibitory factor receptor. She developed recurrent attacks of hyperpyrexia and died at age 3 months.

Stüve-Wiedemann syndrome: long-term follow-up and genetic heterogeneity

Stüve-Wiedemann syndrome (SWS, OMIM 601559) is a severe autosomal recessive condition caused by mutations in the leukemia inhibitory receptor (LIFR) gene. The main characteristic features are bowing of the long bones, neonatal respiratory distress, swallowing/sucking difficulties and dysautonomia symptoms including temperature instability often leading to death in the first years of life. We report here four patients with SWS who have survived beyond 36 months of age with no LIFR mutation. These patients have been compared with six unreported SWS survivors carrying null LIFR mutations. We provide evidence of clinical homogeneity of the syndrome in spite of the genetic heterogeneity.

A case of Schwartz-Jampel syndrome with cleft palate

Schwartz-Jampel syndrome is a rare inherited autosomal recessive disorder characterized by generalized myotonia, joint contractures, skeletal abnormalities and facial dysmorphism. The gene defect involves the 1p34-p36.1 region of chromosome 1. Also, one of the candidate genes for orofacial clefting is the 1p36 region. Cleft palate is the most common congenital anomaly in the head and neck. Despite both diseases share a genetic defect in chromosome 1p36 region, the association of both conditions has not yet been investigated. Feeding problems due to the presence of the cleft may add to the growth retardation that is already present in those patients, so palatoplasty is mandatory. We described a case of Schwartz-Jampel syndrome with cleft palate.

Long-term follow-up in Stuve-Wiedemann syndrome: a clinical report

Stuve-Wiedemann syndrome (SWS) is an autosomal recessively inherited disorder that is usually associated with high mortality in the neonatal period. Eleven cases have been published with prolonged survival, the oldest being 16 years. This phenotype is characterized by progressive skeletal anomalies including short stature, severe spinal deformities, bowing of the long bones, contractures and spontaneous fractures, and by neurological features that resemble dysautonomia. Here we report on the natural history of a Portuguese girl from birth till 12 years. The diagnosis was molecularly confirmed by the detection of a homozygous 4 bp deletion (167_170 del TAAC) in exon 3 of LIFR. We compare the findings in this patient to other patients with prolonged survival from the literature.

Dental findings and muscular-skeletal features in Schwartz-Jampel syndrome: case report of two affected siblings

Schwartz-Jampel syndrome (SJS) is a rare, inherited disorder defined by myotonia, skeletal malformations, muscular stiffness, and growth retardation. The clinical signs and symptoms of SJS are seen in the maxillofacial region. The combination of skeletal and muscular abnormalities predisposes affected individuals to a number of primary and secondary orodental manifestations. Although several studies have discussed the clinical features of SJS from a medical perspective, few reports have addressed the oral findings or dental treatment in children and adolescents with the disorder. This article reviews the dental manifestations and impairments of Schwartz-Jampel syndrome. The case histories of two siblings diagnosed with this disorder are described as well as their dental care.