ESPE Abstracts

Background: Perrault syndrome (PS) is a rare autosomal recessive condition characterized by sensorineural deafness and gonadal dysgenesis in females. The most commonly reported additional manifestations are neurologycal, including mental retardation, cerebellar hypoplasia, and neuropathy.Objective and hypotheses: Although sensorineural hearing impairment and ovarian dysgenesis are the cardinal signs of PS in females, PS is a genetically and clinically he...

Background: Mutations in CYP21A2 are the most common cause of congenital adrenal hyperplasia (CAH). Even though disease linked mutations are rarely classified as founder, in this study, we describe a novel founder mutation, c.2T>C (p.M1?), inactivating the translation initiation codon.Objective and Hypotheses: We aimed to investigate genotype–phenotype correlation and population based origin of this novel mutation in CAH patients with 2...

Background: Proprotein convertase 1/3 (PC1/3) deficiency, an autosomal-recessive disorder caused by rare mutations in the proprotein convertase subtilisin/kexin type 1 (PCSK1) gene, has been associated with severe malabsorptive diarrhea and certain endocrine abnormalities.Objective and hypotheses: To date, only 13 subjects with PC1/3 deficiency have been reported, now we want to report a new patient who was diagnosed PC1/3 deficiency with novel PCSK1 mut...

Background: Intrathyroidal ectopic thymic tissue is one of the rarest congenital abnormalities. Ectopic thymus tissue can be detected in various locations from the mouth or the base of the skull to the superior mediasteneum. We report here three cases of intrathyroidal ectopic thymus tissue who presented as thyroid nodules in different ages.Cases: Case 1: a 10-year-old girl had a guatr and her thyroid function tests were normal. Thyroid US showed a hypoe...