Endocrine Abstracts

Adrenocortical tumors are common, occuring in 5-7% of the population. Adrenocortical carcinoma (ACC) is rare (0.7-2/million/year) and it has a poor prognosis with a five-year survival of less than 30% in advanced stages. The histological differentiation of benign and malignant adrenocortical tumors is challenging.Objectives: To explore the diagnostic utility of multiple microRNAs in various combinations as markers of adrenocortical malignancy by using ar...

Background: Adrenal myelolipoma (AML) is a relatively common and invariably benign tumor composed of adipose tissue and hematopoietic elements. Due to the variable proportion of fat and hematopoietic elements, it is sometimes challenging to differentiate AML from adrenocortical carcinoma (ACC). MicroRNAs have been identified as promising biomarkers in many tumors, including adrenocortical neoplasms, but the microRNA expression of adrenal myelolipoma has not been investigated, ...

Introduction: Adrenocortical carcinoma (ACC) is a rare disease with a poor prognosis. In recent years, two prognostic scoring systems incorporating relevant clinicopathological features of ACC (ENSAT stage, grade, resection status, age at diagnosis, tumour symptoms) have been proposed: the GRAS and S-GRAS scoring systems. The prognostic value of these systems has been demonstrated in large, multicentre studies.Aim: To su mmarize the clinicopathological f...

Introduction: The capability of cancer to accommodate to special metabolic circumstances is a hallmark of it’s existence. Pheochromocytoma/paragangliomas (Pheo/PGL) are rare neuroendocrine tumors with strong and specific metabolic phenotype due to mutations of genes encoding succinate dehydrogenase (SDH) subunits. In this study our aim was to evaluate the expression of glutaminase-1 in hereditary Pheo/PGL tissues and to inhibit SDH activity via pharmacological treatments ...

Background and aim: Primary hyperparathyroidism (PHPT) is a frequent endocrinopathy among postmenopausal women, leading to hypercalcaemia, osteoporosis and nephrolithiasis. PHPT may represent the first manifestation of certain familial syndromes. Among these, multiple endocrine neoplasia syndrome type 1 (MEN-1) caused by germline mutation of MEN1, the gene encoding menin, is the most frequent. Additionally, somatic mutations of MEN1 and microRNAs silencing <e...

Objective: Multiple endocrine neoplasia type 1 (MEN1) is a rare heritable tumor syndrome caused by germline mutations of MEN1 gene affecting mainly the parathyroid, pituitary and pancreas. Phenotype varies widely, even in first-degree relatives. Recently it has been shown that functionally active gastroenteropancreatic neuroendocrine tumors (GEP-NETs), initially frequently diagnosed as sporadic cases, lead to MEN1 diagnosis. Non-functioning tumors are increasingly rec...

Introduction: Clinicopathological characterisation ofneuroendocrine neoplasms could provide improved prognostic information even at the time of the diagnosis.Objectives: The aim of this study was to characterise the clinicopathological features of a large cohort of patients with neuroendocrine neoplasms (NENs).Patients and methods: The study included 210 patients (95 men and 115 women) with histologically confirmed and verified neu...

Introduction: Adrenocortical cancer is a rare malignant tumour with a poor prognosis. The incidence is 0.7–2.0/million/year.Objectives: The aim of this study was to characterise the clinicopathological features and prognostic factors of a large cohort of patients with adrenocortical cancer diagnosed between 1974–2019.Patients and Methods: The study included eighty patients (22 men and 58 women) with histologically confi...