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  • Title: [Imaging manifestations and pathologic basis for hepatic capsular retraction syndrome caused by benign and malignant liver tumors].
    Author: Ou Y, Xiao E, Shang Q, Chen J.
    Journal: Zhong Nan Da Xue Xue Bao Yi Xue Ban; 2015 Oct; 40(10):1132-7. PubMed ID: 26541849.
    Abstract:
    OBJECTIVE: To investigate the imaging manifestations of CT, MRI and pathological basis for hepatic capsular retraction syndrome caused by benign and malignant liver tumors.
 METHODS: CT or MRI images and pathological features for hepatic capsular retraction syndrome were retrospectively analyzed in 50 patients with benign and malignant liver tumors. Picture archive and communication system (PACS) was used to observe and compare the morphology, size, width, depth, edge of the capsular retraction and the status of liquid under the liver capsule. The structure, differentiation and proliferation of the tumor were analyzed under the microscope.
 RESULTS: There were malignant liver tumors in 44 patients and benign tumor in 6 patients. The smooth or rough for the edge of capsular retraction was significant difference between the benign tumors and the malignant tumors with three differentiated grades (all P<0.05). There were significant difference in the width and depth for capsule retraction with different amount of fibrous tissues (all P<0.05). The width and depth of capsule retraction were positively correlated to the size of the tumors (r=0.557, 0.309 respectively, both P<0.05).
 CONCLUSION: Benign and malignant hepatic tumors may appear capsule retraction syndrome, but there are morphological differences between them. The differences are closely related with the lesion size, differentiated degree of tumor and fibrous tissue proliferation. 目的：探讨肝良恶性肿瘤引起包膜回缩征的CT和MRI表现及其病理基础。方法：回顾性分析经病理证实的50例肝良恶性肿瘤肝包膜回缩征的CT和MRI表现及病理特点。通过影像归档和通信系统观察、比较包膜下肝良恶性肿瘤形态、大小及肝包膜回缩宽度、深度、边缘情况、肝包膜下是否有积液的异同，显微镜下分析肿瘤内部及周围结构、分化程度及纤维组织增生量。结果：肝恶性肿瘤44例，良性肿瘤6例。良性肿瘤与高、中、低三个不同分化等级的恶性肿瘤肝包膜回缩边缘光整或毛糙差异有统计学意义(均P<0.05)。纤维组织增生量不同的肿瘤肝包膜回缩宽度、深度差异有统计学意义(均P<0.05)。肿瘤直径大小与肝包膜回缩宽度、深度呈正相关(分别r=0.557，0.309，均P<0.05)。结论：肝良恶性肿瘤均可出现肝包膜回缩征，但两者形态有差异，与肿瘤大小、分化程度及瘤内纤维组织增生程度等密切相关。.
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