Penile enlargement in 3q23-q25 deletion syndrome

Chromosome 3q29 deletion with gastrointestinal malformation: a case report

Introduction

Most chromosome 3 deletions are associated with neuro-developmental and eye abnormalities. Here, we report a rare and unusual multiple congenital abnormality, including ano-rectal malformation, in conjunction with chromosome 3q29 segment deletion, which has not previously been reported.

Case presentation

A three-month-old female Jordanian baby presented with an absent anus and corneal opacities and was referred for further management after a diverting colostomy operation at the age of one day.

Conclusion

Chromosome 3q29 deletion is associated with additional abnormalities to neurological ones, such as ano-rectal malformations. We need to investigate a patient fully to find such hidden clinical features.

Caudal dysplasia sequence with penile enlargement: case report and a potential pathogenic hypothesis

The clinical spectrum of caudal dysplasia sequence (CDS) is noted for its diversity. The origin of CDS remains unknown, though poorly controlled gestational diabetes has been implicated in some cases. Here we describe the case of a newborn with CDS associated with penile enlargement (PE). The main anomalies included anal atresia, agenesis of the kidneys and of the sacrococcygeal vertebrae, dysgenesis of lumbar vertebrae, and bilateral cryptorchidism. Penile enlargement (7 cm), a rather unusual finding, has so far not been reported in association with CDS. Chromosomal analysis failed, and the neonate died 30 min after birth. Comparative genomic hybridization analysis using stored DNA showed a balanced normal male DNA content, which negates chromosomal losses or gains as a cause of CDS and/or PE. PE due to virilizing-type adrenal hyperplasia, caused by common mutations in the genes encoding for the adrenal enzymes 21-hydroxylase and 11-hydroxylase, was ruled out. We report on a previously unpublished case of the coexistence of PE and severe CDS and propose a possible pathogenetic hypothesis of this association.

Blepharophimosis, ptosis, and epicanthus inversus syndrome (BPES) associated with interstitial deletion of band 3q22: review and gene assignment to the interface of band 3q22.3 and 3q23

We report on a child with blepharophimosis, ptosis, and epicanthus inversus (BPES), developmental delay and an interstitial deletion of band q22 of chromosome 3. A review of chromosome 3q anomalies associated with eye abnormalities, specifically blepharophimosis and ptosis, strongly suggests that a locus for eyelid development is present at the interface of bands 3q22.3 and 3q23.