hrp0092p2-18 | Adrenals and HPA Axis | ESPE2019

A Rare Case of Pseudohypoaldosteronism in a Neonate Secondary to Congenital Hydrometrocolpos

Kumar Shruti , McDermott Helen , Kamupira Sheilah , Chizo Agwu Juliana

Background: Hydrometrocolpos is a condition resulting in distension of the vagina and uterus due to accumulation of secretions (other than blood), caused by increased oestrogenic stimulation and vaginal outflow obstruction. The incidence in term neonates is 0.00014-0.001%. The condition presents at extremes of childhood, at birth when maternal circulating hormones are raised and at menarche when oestrogen production commences. Pseudohypoaldosteronism (PHA)...

hrp0082p2-d3-617 | Turner Syndrome | ESPE2014

Early Occurrence of Gonadoblastoma Found at Elective Gonadectomy in Turner Syndrome Mosaic for Y Chromosome

MacMahon J , Morrissey R , McDermott M , O'Sullivan M , Quinn F , Green A , Lynch S A , O'Connell S M

Background: Turner syndrome (TS) is one of the most common genetic disorders in females and occurs in phenotypic females who are missing all or part of one sex chromosome. While the most common mosaic forms of the disorder are 45,X/46,XX and 45,X/46,Xiq, mosaicism for cells containing Y chromosome material is well documented.Objective and hypotheses: Owing to increased risk of gonadoblastoma (GB), current recommendations are for elective gonadectomy foll...

hrp0082p2-d3-619 | Turner Syndrome | ESPE2014

A Child with Clinical and Cytogenetic Features of Male Edward Syndrome and Turner Syndrome with Bilateral Gonadoblastoma in Infancy

MacMahon J , Morrissey R , McDermott M , Quinn F , Green A , Lynch SM

Background: Mosaic Turner syndrome (TSM) commonly occurs in the form of 45,X/46,XX and 45,X/46,Xiq, although mosaicism including the presence of a Y chromosome has been well documented. It is associated with increased risk of gonadoblastoma (GB).Objective and hypotheses: To date, there are only six reported cases of TSM with a trisomy 18 karyotype, and only two of these were phenotypically female with 45,X, 47,XY+18 karyotype.Metho...

hrp0082p1-d2-211 | Reproduction (1) | ESPE2014

The Incidence of Childhood Gonadoblastoma Over 15 Years in the Republic of Ireland

O'Connell Susan M , Lynch Sally-Ann , Coyle David , McDermott Michael , O'Sullivan Maureen , Roche Edna , Quinn Feargal , Cody Declan

Background: Gonadoblastoma is a rare tumour of the gonads presenting in childhood or adolescence. It is a lesion composed of a mixture of germ cells at different stages of maturation, with low malignant potential. It is associated with disorders of sex development (DSD), most commonly Turner mosaic syndrome with Y chromosome material (TMSY), and 46XY gonadal dysgenesis (GD). Little is known about the natural history and incidence of this rare tumour.Obje...