Endocrine Abstracts

Introduction: Breast cancer is the second most common neoplasm in women. Hormonal replacement therapy and combined hormonal contraception are established extrinsic hormonal risk factors for breast cancer. Therefore, the increase in the prevalence of infertility and the use of assisted conception techniques have raised questions regarding the potential risk of hormone-dependent neoplasms. We report the case of a woman diagnosed with bilateral metastasized breast cancer soon aft...

Kiss1 neurons are essential elements in the central pathways controlling the reproductive axis. In rodents, two major hypothalamic populations of Kiss1 neurons exist, in the arcuate nucleus (ARC) and in the rostral periventricular area of the third ventricle (RP3V). The majority of ARC Kiss1 neurons express two others neuropeptides, neurokinin B (NKB; encoded by Tac2) and dynorphin (Dyn); hence, this population has been named KNDy. Yet, NKB-only and Kiss1-only neurons are also...

Introduction: Gestational diabetes mellitus (GDM) is associated with an increase risk of neonatal and maternal complications. Continuous glucose monitoring (CGM) detects glycemic patterns, which could help predict the development of maternal-fetal complications.Objective: To analyze the different glycemic patterns obtained with CGM and to correlate them with the appearance of maternal-fetal complications in GDM.Methods: Women with ...

Introduction: Incidence of Digestive NETs (DNETs) has increased in the last 40 years. Visceral obesity, metabolic syndrome (MetS) and insulin resistance (IR) have been associated with several types of cancer.Aim: To evaluate possible associations of obesity, hyperinsulinemia and IR with well-differentiated (WD) DNETs through a case control study.Materials and methods: Ninety-six patients with gastrointestinal (75.0%) and pNET (22.9...

Introduction: 46 XX testicular DSD (disorder of sex development) is a rare syndrome characterized by 46 XX karyotipe, male external genitalia, azoospermia, sterility and usually hypergonadotropic hypogonadism in adulthood. Approximately 85% of individuals present after puberty with normal penile size, small testes and gynecomastia.Case report: We present a 34-year-old male who was referred for endocrine evaluation due to slightly high prolactin levels. H...

Introduction: Resistance to thyroid hormone (RTH) is a rare autosomal dominant (AD) condition caused by mutations of the Thyroid Hormone Receptor Beta (TR-β) gene, resulting in generalized tissue resistance to thyroid hormone. Euthyroidism is usually maintained at the expense of increased levels of thyroid hormones and with non-supressed TSH.Case report: A 61 year-old-woman was evaluated for increased free T4 index: 2.29 ng/dl (normal, 0.9–2.1)...

Liver dysfunction related to hyperthyroidism encompasses abnormalities associated with the effects of thyroid hormone excess, drug-related hepatic injury, and the presence of concomitant liver disease. Mild liver abnormalities such as hypoalbuminemia and increased serum level of liver enzymes may be seen in 45–90% of patients with hyperthyroidism. Nevertheless, there are a few case reports of thyrotoxicosis associated with severe acute hepatitis. A 37 year old woman prese...

Introduction: Struma ovarii (SO) is a rare ovarian teratoma composed predominantly (more than 50%) or entirely of thyroid tissue. It constitutes 2% to 4% of ovarian teratomas. This tumor is often asymptomatic and discovered incidentally. Only 8% of patients present clinical hyperthyroidism.Case report: A 42-year-old woman presented palpitations, anxiety, sweating, emotional lability and weight loss for several months. Physical examination revealed goitre...

Introduction: Vitamin D insufficiency is very common among Spanish adults. It is well established there is an inverse relationship between vitamin D and PTH levels. The diagnostic approach of an increased serum PTH concentration in a normocalcemic normophosphatemic patient is frequent in routine practice and the deficiency of vitamin D is the major cause of secondary hyperparathyroidism (SHPT). The aims of this study were to evaluate the prevalence of SHPT in a cohort of normo...

Introduction: The estimated annual incidence of Cushing’s disease ranges from 2 to 4 per million. Bilateral macronodular adrenal hyperplasia (BMAH) accounts for <1% of Cushing’s syndrome causes.Case report: We present a case of 58-year-old man who had been suffering typical clinical signs of hypercortisolism for 5 years. He presented hyperglycemia, arterial hypertension, central obesity, thin skin, hemorrhagic diathesis, edemas, weakness an...