未经证实:原发性肢体淋巴水肿的Stewart-Treves综合征(STS-PLE)是一种极为罕见的恶性肿瘤。进行了回顾性分析,以阐明磁共振成像(MRI)发现和体征与病理之间的关系。
未经批准:在北京世纪坛医院招募了7名STS-PLE患者,首都医科大学,从2008年6月到2022年3月。所有病例均行MRI检查。对手术标本进行CD31、CD34、D2-40和Ki-67的组织病理学和免疫组织化学染色。
未经证实:有两种不同类型的MRI表现。三名男性患者的一个是肿块状(STS-PLEI型),另一个是在四名女性患者中观察到的“垃圾桶”d标志(STS-PLEII型)。STS-PLEI型(18个月)的平均淋巴水肿(DL)持续时间短于STS-PLEII型(31个月)。STS-PLEI型的预后比STS-PLEII型的预后差。关于总生存期(OS),STS-PLEI型(17.3个月)比STS-PLEII型(54.5个月)短3倍。对于STS-PLEI型,STS-PLE发病年龄越大,OS越短。然而,STS-PLEII型无显著相关性。将MRI与组织学结果进行比较,以解释MR信号变化的差异,尤其是在T2WI上。在肿瘤细胞密集的背景下,未成熟血管和裂隙的管腔越丰富,T2WIMRI信号(以肌肉信号为内参标准)越高,预后越差,反之亦然。我们还发现,Ki-67指数较低(<16%)的年轻患者的OS较好,特别是STS-PLEI型。CD31或CD34阳性表达较强的患者OS较短。然而,D2-40的表达在几乎所有病例中都是阳性的,似乎与预后无关。
未经证实:淋巴水肿,基于致密肿瘤细胞的未成熟血管和裂隙的管腔越丰富,MRI上的T2WI信号越高。在青少年患者中,肿瘤常出现"垃圾桶"征(STS-PLEII型),预后优于STS-PLEI型.而在中老年患者中,肿瘤呈肿块状(STS-PLEI型)。免疫组化指标CD31、CD34、KI-67的表达与临床预后相关,尤其是Ki-67表达降低。在这项研究中,我们确定将MRI结果与病理结果进行比较可以预测预后.
UNASSIGNED: Stewart-Treves Syndrome in
Primary Limb Lymphedema (STS-PLE) is an extremely rare malignant tumor. A retrospective analysis was conducted to elucidate the relationship between magnetic resonance imaging (MRI) findings and signs compared to pathology.
UNASSIGNED: Seven patients with STS-PLE were enrolled at Beijing Shijitan Hospital, Capital Medical University, from June 2008 to March 2022. All cases were examined by MRI. The surgical specimens were subjected to histopathological and immunohistochemical staining for CD31, CD34, D2-40, and Ki-67.
UNASSIGNED: There were two different types of MRI findings. One was mass shape (STS-PLE I type) in three male patients, and the other was the \"trash ice\" d sign (STS-PLE II type) observed in four female patients. The average duration of lymphedema (DL) of STS-PLE I type (18 months) was shorter than that of STS-PLE II type (31 months). The prognosis for the STS-PLE I type was worse than that for the STS-PLE II type. Regarding overall survival (OS), the STS-PLE I type (17.3 months) was three times shorter than that of the STS-PLE II type (54.5 months). For STS-PLE I type, the older the STS-PLE onset, the shorter the OS. However, there was no significant correlation in STS-PLE II type. MRI was compared to histological results to provide an explanation for the differences in MR signal changes, especially on T2WI. Against a background of dense tumor cells, the richer the lumen of immature vessels and clefts, the higher the T2WI MRI signal (taking muscle signal as the internal reference standard) and the worse the prognosis, and vice versa. We also found that younger patients with a lower Ki-67 index (<16%) had better OS, especially for the STS-PLE I type. Those with stronger positive expression of CD31 or CD34 had shorter OS. However, the expression of D2-40 was positive in nearly all cases, and seemed not to be associated with prognosis.
UNASSIGNED: In lymphedema, the richer the lumen of immature vessels and clefts based on dense tumor cells, the higher the T2WI signal on the MRI. In adolescent patients, the tumor often showed a \"trash ice\" sign (STS-PLE II-type) and prognosis was better than for the STS-PLE I type. While in middle-aged and older patients, tumors showed a mass shape (STS-PLE I type). The expression of immunohistochemical indicators (CD31, CD34, and KI-67) correlated with clinical prognosis, especially decreased Ki-67 expression. In this
study, we determined it was possible to predict prognosis comparing MRI findings with pathological results.