Apert syndrome diagnosed by prenatal ultrasound combined with magnetic resonance imaging and whole exome sequencing: A case report

Contemporary Management of the Upper Limb in Apert Syndrome: A Review

Background

Apert syndrome is a relatively rare genetic disorder with a constellation of distinct craniofacial deformities and bilateral syndactyly of the hands and feet. Although the literature contains ample evidence for the need to treat cranial, midfacial, and hand abnormalities, there are severe shortcomings in the literature when attempting to describe the pathology and management of the entire upper limb in patients with Apert syndrome.

Methods

A thorough literature search was performed using PubMed, Scopus, Web of Science, and Google Scholar, on the management of the upper extremity in Apert syndrome, including the shoulder, elbow, and hand.

Results

Our findings of the literature discuss the clinical presentation and management trends of the upper extremity in patients with Apert syndrome. Through multicenter collaboration, discussion among experts in the field, and evidence gathered from the literature, we propose treatment algorithms to treat deformities of the hand, shoulder, and elbow in patients with Apert syndrome.

Conclusions

This review identifies that even if hand pathologies have been correctly treated, shoulder and elbow abnormalities in patients with Apert syndrome are largely ignored. To optimize outcomes, added cognizance of additional upper limb congenital differences and their management should be highly advocated in this patient population.

Prenatal diagnosis of triphalangeal thumb-polysyndactyly syndrome by ultrasonography combined with genetic testing: A case report

BACKGROUND

Triphalangeal thumb-polysyndactyly syndrome (TPT-PS) is a rare type of congenital limb deformity, and most studies focus on the genetics. Case reports of the sonographic characteristics of TPT-PS during pregnancy are rare.

CASE SUMMARY

A 30-year-old woman (G3P1) who had pregnancies with TPT-PS fetuses is presented. The possibility of TPT-PS was shown by ultrasound performed at the 19^th wk of pregnancy, featuring hands with six metacarpals, an extra digit at the 5^th finger side, and an abnormally widened thumb. Whole-exome sequencing was subsequently conducted. The results showed that exons 1-17 of the LMBR1 gene had a heterozygous duplication, with a length of approximately 253 kb.

CONCLUSION

We suggest prenatal ultrasound examination combined with genetic testing to diagnose TPT-PS accurately and to help clinicians and patients make decisions.