Endocrine Abstracts

Introduction: Tertiary hyperparathyroidism (THPT) is not uncommon in patients with secondary hyperparathyroidism after successful renal transplantation. It occurs up to 25% of these patients one year after transplantation despite renal function improvement. It can be developed due to the autonomous function of at least one parathyroid gland and leads to overproduction of parathyroid hormone (PTH). Tertiary hyperparathyroidism mostly reveals diffuse or nodular pattern of chief ...

Introduction: Retroperitoneal ganglioneuromas (RGN’s) are rare benign tumors originating from the retroperitoneal sympathetic ganglia. They are usually sporadic; though an association with neurofibromatosis type II and multiple endocrine neoplasia (MEN) IIB has been reported. RGN’s are usually asymptomatic. Occasionally they may show symptoms due to local pressure effect or rarely are hormonally active, releasing peptides such as vasoactive intestinal peptide, somato...