Endocrine Abstracts

Introduction: The syndrome of inappropriate secretion of antidiuretic hormone (SIADH) is characterized by hypotonic and euvolemic hyponatremia along with urinary hyperosmolarity, resulting from antidiuretic hormone (ADH) release in the absence of adequate stimuli.Case report: A 59-year-old woman, presented with complaints of constant thirst, general weakness, memory loss, episodes accompanied by headaches, leg cramps, increased blood pressure. From the a...

Background: Nelson syndrome is a rare complication of Cushing disease (CD), which occurs either in patients with very aggressive CD or as a result of misdiagnosis. Clinical characterization of patients with Nelson syndrome could provide important insights in management of the disorder.Methods: We analyzed medical records of patients with CD between 2015 and 2021 to identify those who developed Nelson syndrome.Results: Nine patients...

Introduction: ADH-deficiency (central diabetes insipidus, ADH-D) is a rare disease, and data on worldwide and country-specific prevalence rates are scarce. ADH-D registries could provide valuable information on epidemiology, etiological distribution, treatment requirements and potentially serve as a guide for management decisions in clinical practice.Objectives: To assess the epidemiological data on ADH-D in Russian Registry for Central Diabetes Insipidu...

Background: Acromegaly is an orphan neuroendocrine disease characterized by a variety of complications. Due to slow symptom progression acromegalic patients often are involved in growth hormone complications correction for a long time instead of search for main cause of these multiple disorders. A view on conductive hearing loss in acromegaly in literature is contradictory. The low incidence of hearing in acromegaly, compared with other complications, is presumably due to the ...

Introduction: Prolactinomas are the most common type of pituitary adenomas(40% of them), representing a significant cause of infertility and hypogonadism. About 20% of patients with prolactinomas don’t respond satisfactory(i.e. resistant) even to high dose dopamine agonist(DA) treatment(>3.5–4.5 mg/week). Worth noticing that there are no clear signs to anticipate this resistance but to stepwise increase the dose of DA. In addition, the etiology of resistance &#15...

Background: Acromegaly is a neuroendocrine disease that occurs with slowly progressive symptoms, which leads to delayed diagnosis and the development of complications. Arthropathy is one of such complications, which is accompanied by severe pain and significantly worsens the quality of life. The main attention of researchers is devoted to the pathology of the hip, knee and hand joints. At the same time, the study of the shoulder, acromioclavicular, costovertebral joints in acr...

Introduction: The treatment of choice for parathyroid carcinoma (PC) is a radical en bloc resection. Treatment options for patients with metastatic PC are limited especially if a complete tumor removal cannot be performed. We present four cases of PC patients with multiple metastasis and refractory hypercalcemia that eventually received a multikinase inhibitor with different response on therapy.Clinical cases: The first patient was a 27-year-old woman wi...

Objective: To study the effect of neurohormones kisspeptin and neurokinin B on the indices of calcium-phosphate and electrolyte metabolism in patients with neuroendocrine pathology.Material and Methods: Eighty-two female patients were included in this pilot study divided into 2 groups: ‘Cushing’s disease’ group (n=51) and ‘Acromegaly’ group (n=31). Median age was 33 years [27; 38] in ‘Cushing’s disease...

Background: ACTH-ectopic syndrome is a rare cause of endogenous hypercortisolism and may pose serious difficulties in topical diagnosis.Case description: Clinical features of hypercortisolism manifested at the age of 18 years (2012). A year later he was referred to an endocrinologist: ACTH 113 pg/ml (0–46), cortisol in 24-h urine 2915 μg/day (4.3–176), 1 mg DX test cortisol 1020 nmol/l, 8 mg DX test 764 nmol/l, intact pituitary MRI with co...

Introduction: Despite recent developments in biochemical, radiological and molecular techniques, a preoperative diagnosis of parathyroid carcinoma (PC) remains a difficult task. The main challenge of all studies in this area is a small number of cases based on retrospective data. The search for new blood biomarkers associated with PC could be important for early diagnosis and prognosis. Dysregulated microRNA (miRNA) levels are involved in tumorigenesis and may serve as diagnos...