相关实验视频
Updated: Jul 1, 2025
06:53
Selective Harvesting of Marginating-hepatic Leukocytes
Published on: July 21, 2016
5.7K
肝脏反应性淋巴细胞增生:一个病例报告显示特征性结节和周结节增强
Hirohito Osanai1, Kazuto Kozaka1, Norihide Yoneda1
1Department of Radiology, Kanazawa University Graduate School of Medical Sciences, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan.
Radiology case reports
|March 5, 2024
概括
在患有原发性胆道胆道炎的患者中诊断肝反应性淋巴细胞增生 (RLH) 可能具有挑战性. 关键的成像发现包括一个单一的,均的结节,具有特定的增强模式和扩散特征,有助于与恶性瘤的区分.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 放射学 放射学是一门学科.
- 病理学 病理学 病理学
背景情况:
- 初级胆道胆炎 (PBC) 可能伴有偶尔的肝结节.
- 区分良性肝病变与恶性瘤对于患者管理至关重要.
- 肝反应性淋巴细胞增生 (RLH) 由于与恶性瘤的成像特征重叠而构成诊断挑战.
研究的目的:
- 描述肝脏RLH的成像特征.
- 要突出帮助区分RLH与恶性肝病变的关键特征.
- 为特征性成像发现提出新的术语.
主要方法:
- 一个53岁的女性患有PBC和肝结节的病例介绍.
- 多模式成像评估,包括超声波,动态CT,MRI,动脉图像期间CT,CT肝动脉图 (CTHA) 和18F-FDG-PET/CT.
- 通过切除活检进行组织病理学诊断.
主要成果:
- 肝结节的尺寸为18毫米,是均的和低声的.
- 典型的发现包括轻微的动脉相增强,明显的扩散加权图像超强度与周围节性超强度 (彗星和彗星尾的外观),以及门外 perfusion 缺陷.
- CTHA揭示了结节和形的周结节增强,称为"彗星和彗星尾的外观".
结论:
- 肝脏RLH可以在成像上模仿恶性肝脏瘤.
- 在CTHA上,围块早期增强和在DWI上,围块高强度是关键的区别特征.
- 拟议的"彗星和彗星尾的外观"可能有助于诊断肝脏RLH.
相关概念视频
01:15Secondary Lymphoid Organs
1.5K
Secondary organs, including lymph nodes, the spleen, and mucosa-associated lymphoid tissue (MALT), work harmoniously to protect us from disease and infection.
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
1.5K
01:24Liver Regeneration
3.3K
The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
3.3K
01:27Liver Histology
778
The microscopic anatomy of the liver is a complex and intricate system that comprises numerous structural units known as liver lobules, each of which is comparable in size to a sesame seed. These hexagonal structures consist of plates of liver cells or hepatocytes, which are characterized by their versatility and abundance of cellular apparatus like rough and smooth ER, Golgi apparatus, peroxisomes, and mitochondria.
Hepatocytes perform a variety of essential functions. They secrete...
Hepatocytes perform a variety of essential functions. They secrete...
778
01:23Cells of the Adaptive Immune Response
986
The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
986