相关实验视频
Updated: Jun 21, 2025

06:08
A Novel Method: Super-selective Adrenal Venous Sampling
Published on: September 15, 2017
23.4K
上腺质量和低头血症:马中的斑马
Zsuzsanna Reti1, Laszlo Szabo1, Radu M Neagoe2
1Department of Endocrinology, Faculty of Medicine, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Targu Mures, ROU.
Cureus
|July 12, 2024
概括
乳腺红细胞瘤很少会导致低血 (低) 由于β-2-上腺体受体过活. 这一案例凸显了在患有不明原因的低血糖和上腺质量患者中考虑叶染色细胞瘤的重要性.
科学领域:
- 内分泌学 在内分泌学.
- 在瘤学瘤学.
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 乳腺红细胞瘤是一种罕见的上腺瘤,通常伴有高血压和过多catecholamine的症状.
- 低血 (低) 是染细胞瘤的一个不常见的表现,提出的机制包括β-2-上腺体受体过活化和胰岛素耐药性.
- 诊断方面的挑战在于,当叶染色细胞瘤模仿其他内分泌系统疾病,如初级超代质症时,就会产生挑战.
研究的目的:
- 为了呈现出一种非染色细胞瘤病例,呈现出无法解释的低血和上腺激素过度刺激.
- 为了强调染细胞瘤所带来的诊断挑战,当甲基胺水平正常时.
- 强调在单边上腺质量与低血的差异诊断中考虑叶染色细胞瘤的重要性.
主要方法:
- 一个68岁的女性患者的病例报告,患有单边上腺质量.
- 临床表现包括高血压,上腺激素过度刺激和耐火性低血清症.
- 诊断工作包括血管CT,荷尔蒙评估 (在药物调整后) 和最终的腹腔镜腎上腺切除术.
主要成果:
- 患者表现出上腺激素过度刺激和严重低血清症的迹象,尽管血和尿液中甲基荷胺水平正常.
- 对切除的上腺质量的组织学检查证实了染细胞瘤.
- 在上腺切除术后,患者经历了反弹性高血症 (高水平).
结论:
- 在单侧上腺质量和不明原因的低血糖症患者的差异诊断中应考虑feochromocytoma.
- 正常的catecholamine水平并不排除feochromocytoma,特别是在存在低血量和上腺体症状的情况下.
- 早期考虑和适当处理染细胞瘤可以防止诊断延迟,并指导外科管理.
相关概念视频
Adrenal Gland Disorders
1.5K
Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
1.5K
Antihypertensive Drugs: Potassium-Sparing Diuretics
511
Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...
511
Renal Tubule and Collecting Duct
904
The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
904
Hypoglycemia and Glucagon
254
Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
254
Alterations in Blood Pressure
1.2K
Alterations in blood pressure, such as hypertension (high blood pressure) and hypotension (low blood pressure), significantly affect human health. Understanding these conditions' classifications, causes, and symptoms is essential for effective management and treatment.
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart...
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart...
1.2K
Hormones of the Adrenal Glands
2.4K
Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and...
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and...
2.4K

