Peripancreatic strandsappearance in pancreatic body and tail carcinoma: evaluation by multi-detector CT with pathological correlation
Peripancreatic strandsappearance in pancreatic body and tail carcinoma: evaluation by multi-detector CT with pathological correlation
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胰体尾部癌的胰周线外观：多排 CT 评估与病理相关性
DOI：
10.1007/s00261-011-9803-0
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Yonemasu H
中科院分区：
文献类型：
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作者：
Matsumoto S;Mori H;Kiyonaga M;SaiM;Yamada Y;Hijiya N;Shibata K;OhtaM;Kitano S;Takaki H;Fukuzawa K;Yonemasu H
目的胰腺体尾癌在多层螺旋CT （multidetector CT， MDCT）上多见“胰周链征”。本研究的目的是阐明胰周链外观的病理和临床意义。方法回顾性分析17例行胰腺体尾癌手术的MDCT表现。胰周链状外观定义为源自原发病变的链状结构，并与周围脂肪组织的CT衰减增加有关。所有CT检查均采用多层螺旋CT增强多平面重建技术。结果13例（76%）患者在MDCT上检出胰链。MDCT显示胰周束最大宽度为1.55±0.36 mm（范围1.0-2.5 mm）。此CT表现与胰腺外癌浸润有明显的脂肪组织间隔纤维化增厚，包括微血管。这一病理发现在所有13例CT阳性发现的患者中得到证实，而在4例CT阴性发现的患者中未得到证实。结论胰体癌和胰尾癌的MDCT表现为胰腺外癌浸润，脂肪组织间隔有明显的纤维化增厚。此CT表现可提示癌的侵袭性。
ObjectivesIn pancreatic body and tail carcinoma, “peripancreatic strands appearance” is frequently seen on multidetector CT (MDCT). The purpose of this study was to clarify the pathological and clinical implications of peripancreatic strands appearance.MethodsWe retrospectively evaluated MDCT images in 17 patients with pancreatic body and tail carcinoma who underwent surgical resection. Peripancreatic strands appearance was defined as the strands structure deriving from the primary lesion and associated with increased CT attenuation of surrounding adipose tissues. All CT examinations were performed by contrast-enhanced MDCT with a multiplanar reformation technique.ResultsPeripancreatic strands appearance was detected on MDCT in 13 (76%) patients. The maximum width of the peripancreatic strands seen on MDCT was 1.55 ± 0.36 mm (range, 1.0–2.5 mm). This CT finding was well correlated with extrapancreatic carcinoma invasion with marked fibrotic thickening of adipose tissue septa, including microvessels. This pathological finding was confirmed in all 13 patients with positive CT finding whereas it was not confirmed in the 4 patients with negative CT finding.ConclusionPeripancreatic strands appearance on MDCT in pancreatic body and tail carcinoma reflects extrapancreatic carcinoma invasion with marked fibrotic thickening of adipose tissue septa. This CT finding would indicate the property of carcinoma aggressiveness.