Endocrine Abstracts

Background: Diabetes Insipidus (DI) is uncommon during pregnancy. It may predate pregnancy, be unmasked by pregnancy or arise de novo during pregnancy secondary to other pathology. We present a case of DI in pregnancy to highlight challenges in management.Case Report: A 27-year-old lady at 21 weeks’ gestation, presented to A&E with worsening headache and confusion for three to five months. She was hemodynamically stable, had bitemporal hemianopi...

Objectives: The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) is a validated and widely used tool for thyroid nodules triage. Studies reporting on the frequency of each Bethesda category are scarce, and there are wide discrepancies in the reported results between the various centers. Our aim was to register all cytological reports of the thyroid fine needle aspiration biopsies (FNAB) reviewed in the Cytology Department of a tertiary hospital during a calendar ye...

Introduction: Ganglioneuromas (GNs) are rare, benign tumors, arising from neural crest cells. Their incidence amongst adrenal masses is 0.3%-6%. The majority are incidentalomas and hormonally inactive but a subset may cause compressive effects. Presentation in the context of genetic syndromes (NF1/NF2, RET, MAX, Von Hippel Lindau disease) has been reported. We present two cases of adrenal GNs: Case 1. A 31-year-old female patient who presented with a history o...

Introduction: Greek Orthodox monasteries due to their sartorial habits, comprise a population with high prevalence of hypovitaminosis D. Intermittent religious fasting is adopted by this population, as well as from a large part of general lay Greek population. Comparative effects of vitamin D supplementation and intermittent fasting on vitamin D equilibrium and calciotropic profiles remain scarce.Aim: To comparatively evaluate effects of vitamin D supple...

Background: Klinefelter syndrome (KFS) is the most common chromosomal aberration in men, characterized by an extra-X chromosome (47, XXY). Besides the well-known reproductive defects, KFS is characterized by a 4-fold increase in metabolic syndrome, cardiovascular morbidity and mortality. The exact cause of this constellation remains unclear.Methods: Data from non-mosaic KFS adults and adolescents, evaluated in the endocrine unit of Lausanne University Ho...

Background: Thyroglobulin (Tg) is a protein exclusively synthesized by follicular thyroid cells. Serum Tg levels depend on thyroid volume, serum TSH levels, gender, age, smoking, and iodine intake. Consequently, serum Tg reference range may exhibit variations among different populations. It is crucial to establish population-specific reference ranges, especially when interpreting serum Tg values in the follow-up of patients with differentiated thyroid cancer who have undergone...

Introduction: Paragangliomas are rare neuroendocrine neoplasms originating from the chromaffin cells of the neural crest and projecting from the extra-adrenal paraganglia. For more than 30% of patients with paragangliomas there is a genetic predisposition. According to W.H.O. paragangliomas should be treated as potentially metastatic diseases. We describe the case of a patient with a paraganglioma and a pathogenic variant in the SDHB gene.Case Presentati...

Introduction: Neuroendocrine neoplasms (NENs) exhibit significant heterogeneity in growth rates. Clinical and histopathological dedifferentiation has been documented but their clinical characteristics have not been described.Aim of the study: The identification of clinical features of a series of pancreatic NENs (pNENs) that developed dedifferentiation during their course.Methods: Fourteen patients (eight males) with mean age(&#177...

Objective: Prolactin has been adversely associated with arterial function in postmenopausal women but its vascular effects in reproductive women are unknown. Furthermore, although both circulating prolactin levels and markers of vascular function follow menstrual cycle (MC) phases, their possible inter-correlation has not been explored.Methods: Sixty healthy premenopausal women were evaluated in two distinct phases of their MC (follicular, F and luteal p...

Introduction: Pheochromocytomas (PHEOs) are rare catecholamine-producing tumors with metastatic potential. Composite PHEOs are rare (3% of adrenal tumors) including components other than adrenal chromaffin cells. We report a case of a rare composite neoplasm with a very rapid disease progression.Case report: A 57-year-old male was referred to the Endocrinology Department for investigation of a retroperitoneal mass. He presented with nonspecific symptoms ...