Open AccessIs interstitial 8p23 microdeletion responsible of 46, XY gonadal dysgenesis? One case report from birth to puberty
Author(s) -
WagnerMahler Kathy,
Kurzenne JeanYves,
Gastaud Frederique,
Hoflack Marie,
Panaia Ferrari Patricia,
Berard Etienne,
Giuliano Fabienne,
KarmousBenailly Houda,
Moceri Pamela,
Jouannelle Celine,
Bourcier Marine,
Robart Elise,
Morel Yves
Publication year - 2019
Publication title -
molecular genetics and genomic medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 29
ISSN - 2324-9269
DOI - 10.1002/mgg3.558
Subject(s) - haploinsufficiency , micropenis , gonadal dysgenesis , hypospadias , medicine , pediatrics , disorders of sex development , gynecology , genetics , biology , endocrinology , anatomy , phenotype , gene
Background Chromosome 8p deletions are associated with a variety of conditions, including cardiac abnormalities, mental, behavioral problems with variable morphotype and genitourinary anomalies in boys. Methods We describe the follow‐up over almost 15 years of a boy who initially presented with perineal hypospadias with a micropenis and cryptorchidism with 46, XY DSD . Results Imaging, pathology, and hormonal exploration suggested gonadal dysgenesis. Further genetic studies were deemed necessary during follow‐up. The child's further development recommended further genetic analyses. High‐resolution analysis showed an interstitial deletion on the short arm of a chromosome 8: 46, XY ,del(8)(p23.1p23.1). We reviewed the literature and found 102 cases including 54 boys: 62.7% had mental problems, 50.9% a dysmorphic disorder, 55.9% cardiac anomalies, and 46.3% of the boys had genitourinary anomalies. Our patient's genital abnormalities can be explained by the haploinsufficiency of the genes, such as GATA 4 ( OMIM 600576) that are included in the deleted area. Conclusion This case of severe 46, XY DSD raises the question of the role played by 8p23 microdeletion in gonadal dysgenesis. Clinicians are encouraged to look for this anomaly on chromosome 8 in cases of unexplained gonadal dysgenesis even when few signs suggestive of this anomaly are present.