ESPE Abstracts

Background: The clinical phenotype of the chromosome 2q31 deletion syndrome consists of a variety of limb abnormalities and other skeletal defects, craniofacial dysmorhic features, developmental delay, and other not specific congenital anomalies.Objective and hypotheses: To describe a patient with 2q31.1 microdeletion syndrome and short stature, diagnosed with GH deficiency.Method: We describe a 5 years and 4 months girl with devel...

Background: Septo-optic dysplasia (SOD) is a rare congenital anomaly, clinically heterogeneous, combining optic nerve and pituitary gland hypoplasia, midline abnormalities of the brain, including absence of the corpus callosum and septum pellucidum. The diagnosis is made when two or more features of the classic triad are present. HESX1, SOX2, SOX3, FGF8, FGFR1, PROKR1, SHH, are implicated in the etiology of SOD.Objective and hypotheses: Description of a ...

CHOPS syndrome is a rare monogenic disorder caused by heterozygous gain-of-function variants in AFF4. The 13 patients reported to date share a highly recognizable phenotype: Coarse face, Cognitive impairment, Heart defects, Obesity, Pulmonary involvement, Short stature and Skeletal dysplasia. AFF4 encodes a scaffold protein involved in transcriptional elongation and critical for gene expression regulation during embryogenesis. Notably, it appears to regulate adipogenic differe...

Background: We report clinical and molecular cytogenetic characterization of a 13-year-7-month-old boy with a Sotos-like phenotype and de novo NFIX deletions and review the literature.Result: A whole exome sequencing revealed in the present patient with unique clinical phenotypes a de novo frameshift mutation c.570-573delATCA (p.S191Ifs*19) in NFIX gene in 19p13.2.Discussion: The p...

Background: The MAMLD1 gene (Xp28) is thought to cause disorder of sex development (DSD) in 46, XY patients, mostly presenting with hypospadias, and, recently, also gonadal dysgenesis. However, there is some controversy about the role of MAMLD1 in sex development because i) some MAMLD1 variants are also detected in normal individuals, ii) others are not present in all affected DSD individuals of the same family; iii) several MAMLD1 mutations...

Background: Childhood brain tumour survivors are at risk of developing endocrine secondary effects throughout lifetime. Transition between childhood and adult care is a critical moment during which patients may stop medical visits and treatments.Objective: To describe endocrine care transition in our cohort of patients with primary brain tumors followed from 2010-2015, who are ≥=18 years old by December 31st</...

The WT1 gene has a crucial role in the genesis of the bipotential genital ridge and subsequently in the specification of the Sertoli cells of testis. Mutations involving the WT1 gene are associated with a wide range of phenotypes impacting testis-determination and development including Denys-Drash syndrome, Frasier syndrome and Meacham syndrome. Here, we describe two sibs with DSD carrying a de novo mutation in the WT1 gene. A girl was born with Prader IV intersex genitals. Cy...

Background: Pheochromocytoma is an uncommon tumor, producer of Catecholamines and causing hypertension in childhood. It is associated to genetic alterations, generally related with RET gene disorders.Method: We present the case of a unilateral familial isolated pheochromocytoma, present in father and son, carriers of a heterozygous mutation in the VHL gene (c.235C > G; p.R79G).Case: Male, 9 years-old with history of fever, prof...

Background: Obesity has increased drastically in the last few years. It’s well known the connection between intrauterine growth restriction (IUGR) and the development of metabolic syndrome based on the thrifty phenotype. Some studies have proposed that a poor intrauterine environment could lead to the development of chronic conditions later in life, and its believed leptin is involved in this process.Objective and hypotheses: Establish the mean of l...

Immune dysregulation-polyendocrinopathy-enteropathy-X-linked syndrome (IPEX) is caused by mutations in the gene that encode for the transcription factor FOXP3. IPEX is a rare, often fatal disease. However, several cases present later onset, mild forms or less common clinical manifestations. We report a case who had de novo mutation of FOXP3 causing neonatal diabetes but without other features of IPEX syndrome. An 8 days old male, late preterm at 36 weeks, low birthweight 2200g...