Endocrine Abstracts

Introduction: Black adrenal adenomas are rare and benign. They are named after their black appearance, due to lipofuscin pigment. Most frequently black adenomas are associated with ACTH-independent Cushing’s syndrome. They can also cause primary hyperaldosteronism or be nonfunctioning. Unlike most other adrenal adenomas, black adenomas exhibit high Hounsfield units (>30) on CT, and high standard uptake value on FDG-PET.Case presentation: A 67-ye...

Introduction: The small-cell neuroendocrine prostate carcinoma (SCPC) is rare, highly aggressive and usually transforms from prostate adenocarcinoma (PAC) after androgen deprivation therapy (ADT).Case Report: A 66-year-old man had a three-year history of high-grade PAC with high burden disease (abdominal lymph node and bone metastasis) at presentation (09/2019). On the initial staging evaluation, the CT scan documented a 20 mm left adrenal nodule compati...

Introduction: In patients with ACTH-dependent Cushing Syndrome, differentiating between pituitary and ectopic sources can be challenging. Noninvasive testing can be performed, but bilateral inferior petrosal sinus sampling (BIPSS) remains the gold standard. In the last years however, novel imaging modalities, namely 3T-MRI with 3-dimensional spoiled gradient-echo sequence and 68Ga-tagged CRH combined with positron emission tomography, have been proposed as alternatives.<p ...

Introduction: Follicular thyroid cancer (FTC) accounts for 12% of differentiated thyroid cancers (DTC). It is frequently complicated by bone metastasis (BM), which impact quality of life (QOL) and decreases the 10-year survival rate to 13-21%.Case Report: A 53-year-old woman followed at the Pain Clinic for over 10 years for lower back pain, had been operated three years before due to lumbar disc herniation. Pain relapsed one year after surgery and was re...

Introduction: Central obesity and the consequent metabolic syndrome have global devastating effect on the health system due to their strong association with type 2 diabetes mellitus and cardiovascular disorder. There are contradictory results about the influence of insulin resistance and visceral adipose tissue on bone phenotype. The study was designed to evaluate the association between bone quality and bone mineral density (BMD) with bone marrow adipose tissue (MAT) as well ...

Cushing’s disease tumours bear activating mutations in the ubiquitin-specific-protease 8 gene (USP8) gene in 40-60% of cases. We have previously observed that patients with USP8 mutant tumours have smaller tumour size and show a better response to high dose (8mg) dexamethasone stimulation test compared to those with wild type USP8 (1). The aim of this study was to define the role of USP8 on glucocorticoid receptor (GR) in corticotroph tumour cells. We did experim...

Introduction: People living with human immunodeficiency virus (HIV) are at increased risk of developing metabolic disorders, such as obesity, dyslipidemia, insulin resistance, diabetes and hypertension; which may also be associated with hypercortisolism. Due to the similarity between the metabolic changes present in these two clinical situations, several studies have evaluated whether HIV-infected patients have increased levels of cortisol, but the results are not consensual. ...

Background: Systematic exploration for anterior pituitary deficiency in patients harboring pituitary microadenomas is not well defined. So far, little is known on the involvement of pituitary function in clinically non-functioning pituitary microadenomas (CNFPM).Objective: To evaluate the prevalence of anterior pituitary insufficiency, defined as at least one hormonal deficiency, in patients diagnosed of CNFPM.Patients and methods:...

Collision tumors (CT) refers to the coexistence of two histologically distinct malignant tumors within the same mass. CT involving the thyroid gland (TG) and/or the neck are specially uncommon and present a diagnostic and treatment challenge.Case report: A 69-year-old male presented with a one year history of bilateral cervical lymph node growth, a four-month history of progressive dysphagia and a dyspnea associated with a rapidly expanding, painless mas...

The experience and expertise of a thyroid surgery team is a relevant factor in the development of postsurgical hipoparathyroidism (hypoPP). In 2005, we published a 9.6% prevalence of permanent hipoparathyroidism among patients operated on for thyroid cancer (TC) at our centre between 1985 and 2001. Since 2002, an expert surgery team was implemented as part of a multidisciplinary committee. The aim of the present study is to assess the prevalence and risk factors associated wit...