The solid pseudopapillary tumors of the pancreas (SPTP) are rare tumors, which are commonly found in adolescent women. Radical surgical resection of the primary tumor or metastases is the standard treatment for SPTP...The solid pseudopapillary tumors of the pancreas (SPTP) are rare tumors, which are commonly found in adolescent women. Radical surgical resection of the primary tumor or metastases is the standard treatment for SPTP and could achieve long-term survival. We reported a case of a 20-year-old female with multiple liver metastases of SPTP, and performed surgical resection for primary tumor 14 cm in diameter and 2 major liver metastases (both 5 cm in diameter), radiofrequency ablation (RFA) for small lesions and one major liver metastase 6 cm in diameter successfully. No evidence of recurrence in situ or in the liver was found by computed tomography (CT) scan 3 months after the operation. RFA is a safe and effective treatment for unresectable multiple liver metastases of SPTP.展开更多
目的:探讨胰腺实性假乳头状瘤( SPTP)的CT特征及病理改变。方法:回顾性分析6例SPTP的临床资料,其中男1例、女5例,平均年龄24.5岁。所有患者均进行CT平扫及增强扫描。病灶位于胰头2例,胰体1例,胰尾3例;胰尾3例中,1例发生肝脾...目的:探讨胰腺实性假乳头状瘤( SPTP)的CT特征及病理改变。方法:回顾性分析6例SPTP的临床资料,其中男1例、女5例,平均年龄24.5岁。所有患者均进行CT平扫及增强扫描。病灶位于胰头2例,胰体1例,胰尾3例;胰尾3例中,1例发生肝脾多发转移,1例发生肝脏多发转移。总结其CT表现及病理学表现特征。结果:CT平扫病灶大小约3 cm ×5 cm~11 cm ×10 cm,呈圆形、类圆形或分叶状囊实性肿块,均可见包膜;1例病灶周缘可见细条状及斑点状钙化,2例病灶内可见斑片状出血灶。增强扫描病灶实性部分呈渐进性持续强化,可见特征性表现“浮云”征。所有病例均未见胆管或胰管扩张。6例病变病理检查均显示肿瘤有完整或不完整的纤维包膜,瘤组织由实性区、假乳头区混合组成,瘤细胞形态较一致,部分区域有出血、坏死及退行性变。结论:SPTP好发于青年女性,其CT表现有一定特征性,多期增强扫描有助于诊断与鉴别诊断;肿瘤细胞以纤细的纤维血管为轴心形成特征性的分支状假乳头状结构是其组织病理学特征性改变。展开更多
目的:运用免疫组化技术探讨胰腺实性假乳头状瘤(solid pseudopapillary tumors of pancreas,SPT)的病理形态特征及组织起源。方法:免疫组化EnVision法检测β-cate-nin、E-cad、Fli-1、CD56、α1-AT、Vim、NSE、CD10、PR、Syn、CgA及CKpa...目的:运用免疫组化技术探讨胰腺实性假乳头状瘤(solid pseudopapillary tumors of pancreas,SPT)的病理形态特征及组织起源。方法:免疫组化EnVision法检测β-cate-nin、E-cad、Fli-1、CD56、α1-AT、Vim、NSE、CD10、PR、Syn、CgA及CKpan在35例SPT组织中的表达。结果:β-catenin核(质)阳性表达为86%、E-cad3%、Fli-141%、CD5654%、α1-AT94%、Vim100%、NSE89%、CD1086%、PR60%、Syn51%、CgA34%及CKpan31%。β-catenin与E-cad的表达差异有统计学意义,P<0.05。结论:β-catenin异常核表达与E-cad表达缺失存在相关性,两者在SPT特殊的假乳头形态的形成中可能起重要作用;多种抗体表达支持SPT起源于多潜能干细胞的假说。展开更多
文摘The solid pseudopapillary tumors of the pancreas (SPTP) are rare tumors, which are commonly found in adolescent women. Radical surgical resection of the primary tumor or metastases is the standard treatment for SPTP and could achieve long-term survival. We reported a case of a 20-year-old female with multiple liver metastases of SPTP, and performed surgical resection for primary tumor 14 cm in diameter and 2 major liver metastases (both 5 cm in diameter), radiofrequency ablation (RFA) for small lesions and one major liver metastase 6 cm in diameter successfully. No evidence of recurrence in situ or in the liver was found by computed tomography (CT) scan 3 months after the operation. RFA is a safe and effective treatment for unresectable multiple liver metastases of SPTP.
文摘目的:探讨胰腺实性假乳头状瘤( SPTP)的CT特征及病理改变。方法:回顾性分析6例SPTP的临床资料,其中男1例、女5例,平均年龄24.5岁。所有患者均进行CT平扫及增强扫描。病灶位于胰头2例,胰体1例,胰尾3例;胰尾3例中,1例发生肝脾多发转移,1例发生肝脏多发转移。总结其CT表现及病理学表现特征。结果:CT平扫病灶大小约3 cm ×5 cm~11 cm ×10 cm,呈圆形、类圆形或分叶状囊实性肿块,均可见包膜;1例病灶周缘可见细条状及斑点状钙化,2例病灶内可见斑片状出血灶。增强扫描病灶实性部分呈渐进性持续强化,可见特征性表现“浮云”征。所有病例均未见胆管或胰管扩张。6例病变病理检查均显示肿瘤有完整或不完整的纤维包膜,瘤组织由实性区、假乳头区混合组成,瘤细胞形态较一致,部分区域有出血、坏死及退行性变。结论:SPTP好发于青年女性,其CT表现有一定特征性,多期增强扫描有助于诊断与鉴别诊断;肿瘤细胞以纤细的纤维血管为轴心形成特征性的分支状假乳头状结构是其组织病理学特征性改变。
文摘目的:运用免疫组化技术探讨胰腺实性假乳头状瘤(solid pseudopapillary tumors of pancreas,SPT)的病理形态特征及组织起源。方法:免疫组化EnVision法检测β-cate-nin、E-cad、Fli-1、CD56、α1-AT、Vim、NSE、CD10、PR、Syn、CgA及CKpan在35例SPT组织中的表达。结果:β-catenin核(质)阳性表达为86%、E-cad3%、Fli-141%、CD5654%、α1-AT94%、Vim100%、NSE89%、CD1086%、PR60%、Syn51%、CgA34%及CKpan31%。β-catenin与E-cad的表达差异有统计学意义,P<0.05。结论:β-catenin异常核表达与E-cad表达缺失存在相关性,两者在SPT特殊的假乳头形态的形成中可能起重要作用;多种抗体表达支持SPT起源于多潜能干细胞的假说。