Endocrine Abstracts

Introduction: Cushing’s disease (CD) is a rare disorder caused by an ACTH-secreting pituitary adenoma. Transsphenoidal surgery (TSS) is the recommended first-line treatment. However, an equivocal or even normal preoperative MRI can preclude the surgical management and the outcome of these patients.Objectives: Evaluate the relationship between preoperative MRI and TSS efficacy in patients with CD.Methods: Retrospective cohort s...

Background: Optimal management of type 1 diabetes requires full understanding of the relationships between the triad: HbA1c, fasting plasma glucose, and glucose variability (GV). As GV may contribute to HbA1c we assessed the influence of GV in HbA1c levels.Research design and methods: We retrospectively analysed 9393 h of continuous glucose monitorings (CGMs) from 61 patients with type 1 diabetes. Periods of 24 h with missing values were excluded. We cal...

Introduction: Cushing’s disease (CD) is characterized by increased secretion of ACTH often as a result of a pituitary adenoma. The surgical success rates after transsphenoidal pituitary surgery (TSS) range from 53 to 96% in different centres. Postoperative cortisol levels have been proposed as the standard criteria for prediction of surgical remission however, this variable is subject of a variety of interferences.Objectives: Evaluate the potential ...

Introduction: Langerhans cell histiocytosis (LCH) is a rare disorder characterized by proliferation/accumulation of cells phenotypically similar to skin Langerhans cells. Clinical presentation and aggressiveness are very heterogeneous, from benign to disseminated forms that cause significant morbi-mortality, particularly endocrine failures.Case 1: A 15-year-old Caucasian woman presented with a 14-month history of headaches, secondary amenorrhea. She repo...

Introduction: Medullary thyroid carcinoma (MTC) occurs in a hereditary pattern in 25% of cases. Virtually all patients with multiple endocrine neoplasia 2A (MEN2A) develop MTC. MTC aggressiveness and natural history varies according to the RET mutation. Prophylactic thyroidectomy may cure and/or prevent metastatic disease in most cases.Case report: A 27-year-old man with past history of colostomy at 5 months of age for Hirschsprung disease and t...

Introduction: Hypophostemic rickets is characterized by phosphate renal loss associated with a primary defect of osteoblasts and metabolism of vitamin D. Marked bone turnover caused by high levels of parathyroid hormone attribute to these patients an elevated risk for hungry bone syndrome after parathyroidectomy.Case report: A 34-years old woman with a past history of Lynch syndrome and hypophostemic rickets associated with hyperparathyroidism and brown ...

Introduction: In patients with well-differentiated thyroid cancer (DTC) low/undetectable thyroglobulin (Tg) at time of remnant ablation usually reflects a complete previous surgery. However, in a small percentage (6.3–16%) it can represent false negative values.Objectives: Evaluate the frequency of patients with low/undectable Tg at time of remnant ablation with locoregional or distant lesions at post-ablative 131I whole body scan (WBS) a...

Introduction: Subclinical Cushing’s syndrome (SCS) is the most frequent endocrine dysfunction found in adrenal incidentalomas. Although adrenalectomy constitutes a therapeutic option for selected cases, the presence of bilateral tumours can difficult the surgical decision.Objective: Evaluate the utility of 131I-6β-iodomethyl-19-norcholesterol scintigraphy in SCS with bilateral adrenal tumours.Methods: Retrospec...

Introduction: The height growth is regulated by multiple factors, including specific genetic mutations that ensure correct differentiation and proliferation of chondrocytes. We present a case of double association of haploinsufficiency of the SHOX gene with a mosaic 45,X/46,X,r(Y) karyotype responsible for growth and pubertal delay.Case: Male patient, observed in endocrinology consultation at age of 12, with constitutional delay of grow...

Introduction: Diabetes mellitus is a common metabolic complication after kidney transplantation, occurring with a frequency of 15–30% in the first year. However, despite the high incidence, there are described few cases of diabetic nephropathy with nodular glomerulosclerosis of the allograft.Case: Female patient, 49, with autosomal dominant familial renal poliquistose diagnosed at 17 and progression for chronic end-stage renal disease, underwent ren...