ESPE Abstracts

Introduction: The underlying genetic causes of congenital hypothyroidism with gland in-situ (CH GIS) and hyperthyrotropinemia (HT) remain largely a mystery. Thanks to NGS, genetic screening is now finding many novel variants. The challenge is to correctly identify which genes and which variants lead to CH and which cause only a transient HT.Objectives: Our objectives were to evaluate the presence of variants in 14 candid...

Mosaic variegated aneuploidy (MVA) syndrome represents a rare autosomal recessive disease characterized by aneuploidies with gain and loss of multiple chromosomes. We describe case of two Moroccan brothers with MVA2, due to CEP57 mutations. Patients are 17 and 13-year-old male siblings of a Moroccan healthy consanguineous couple. Oldest brother was delivered at 35 gestational weeks after IGR diagnosis, small for gestational age (SGA, 1300 grams, -3 SDS). Younger patient’...

DICER1, a gene located on chromosome 14q32.13, encodes a protein ribonuclease (RNase) IIIb that plays a central regulatory role in miRNA processing. DICER1 syndrome has an autosomal dominant inheritance and predisposes affected individuals to a wide variety of tumors, both benign and malignant. We describe the case of a 6-year-old girl, carrier of a DICER1 germline mutation, and affected by a differentiated thyroid carcinoma. At the age of 6 a first thyroid ultrasound revealed...