虽然这种方法有一些优点,例如解决了长期以来围绕零细胞(null cell)PitNETs的问题,但它可能不足以定义腺垂体肿瘤的全谱系。基于TFs的方法不能完全解释垂体肿瘤发生的复杂调节、TFs表达的变异性、存在未定向细胞系的肿瘤和显示转分化的肿瘤[An approach bas...
基于TFs的方法不能完全解释垂体肿瘤发生的复杂调节、TFs表达的变异性、存在未定向细胞系的肿瘤和显示转分化的肿瘤[An approach based on TFs does not fully account for complex regulation of pituitary tumourigenesis, the variability in expression of TFs, the existence of tumours with uncommitted cell lineage,...
这些肿瘤亚型术前可根据其临床和生化特征,以及其放射影像学特征,包括T2加权磁共振成像(MRI)上稀疏颗粒性肿瘤的高信号来区分。偶见肿瘤以致密颗粒性形态为主,但含有散在的纤维小体,伴弥漫性核周角蛋白染色(Occasional tumors have the predominant morphology of densely gra...
, mri上通常包含囊性和实质性成分.囊性部分在t1wi上表现为高信号,继发于蛋白含量高,胆固醇,轻度钙化或出血.囊肿壁增强,可见环状或结节状钙化.计算机断层扫描(ct)可用于钙化检测.观察到沿肿块邻近视神经束的脑实质脑水肿改变,认为是特征性的;然而,在pitnets/垂体腺瘤,生殖细胞瘤和恶性淋巴瘤中也有报道.鉴别诊断为...
26、sure the longest diameter of the lesion in the arterial-phase scan肝内靶病灶选择 平扫期 动脉期 门静脉期肝内靶病灶选择 该病灶不应选为靶病灶The lesion does not show typical vascular pattern: it does not appear as a clear-cut hypervascular mass in the arterial phase.NEW LESIONS Large reg...
基于TFs的方法不能完全解释垂体肿瘤发生的复杂调节、TFs表达的变异性、存在未定向细胞系的肿瘤和显示转分化的肿瘤[An approach based on TFs does not fully account for complex regulation of pituitary tumourigenesis, the variability in expression of TFs, the existence of tumours with uncommitted cell lineage,...
【题目】阅读理解I f you hav e a littl e child, who hates sitting in a car seat, then th e FreedomRi d e is th e answer to your problem.Woul d you want to b e stuck in an unchangeabl e position every tim e you'r e in th e car No. Yo u wouldn't.When an adult sits ...
MRI. for 23 patients in, a vegetative stat e an d 31 that ar e minimally(极微地) conse ious.Patients ar e sai d to b e in a vegetativ e stat e i f they ar e test e d an d foun d unabl e to do such things as mov e on comman d or follow a mony ng object with ...
Does Lewy body dementia show up on an MRI? What causes hallucinations in Lewy body dementia? Does Lewy body dementia cause strokes? Is Lewy body dementia contagious? What is cortical Lewy body disease? How do Lewy bodies differ from Alzheimer's disease?
因此,2022WHO分类并不会取代这些器官病理诊断中的关键解剖部位信息(the 2022 WHO Classification does not replace the key anatomic site-based information to be included in pathological diagnoses for these organs.)。例如,垂体NETs是根据细胞谱系、细胞类型和相关特征,结合常规使用转录因子和激素以及其他生物标志物...