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胰腺浆液性囊腺瘤可为单囊型、微囊型及实性型等,内覆富于糖原的透明立方上皮,其恶变的可能性很小。因此,只有在引起症状或难以与黏液性肿瘤鉴别时才行手术治疗。黏液性囊性肿瘤和导管内黏液性乳头状肿瘤均可根据形态学分为低级别异型性、中级别异型性、高级别异型性及伴有浸润性癌,二者的主要区别为是否与胰腺导管相通,且黏液性囊性肿瘤常有卵巢样间质;实性假乳头瘤是胰腺具有独特形态学和免疫表型的肿瘤,虽然为低度恶性肿瘤,大部分表现为良性经过;腺泡细胞囊腺瘤与胰腺浆液性囊腺瘤一样,绝大多数为良性,仅有个别恶性病例的报道;胰腺的杂类囊性肿瘤主要有成熟性畸胎瘤、淋巴上皮囊肿、囊性淋巴管瘤及多囊性腺瘤样错构瘤,均为良性肿瘤。应特别注意原发的胰腺实性肿瘤继发囊性变,可能与一些胰腺原发囊性肿瘤相混淆。
Pancreatic serous cystadenoma can be single capsule type, microcapsule type and solid type, etc., covered with transparent glycogen-rich cubic epithelium, the possibility of malignant transformation is very small. Therefore, only in the cause of symptoms or difficult to identify with the mucinous tumors before surgical treatment. Mucinous cystic tumors and intraductal mucinous papillary tumors can be divided into low-grade atypia, middle-grade atypia, high-grade atypia and invasive cancer according to the morphological characteristics, the main difference between the two is whether with the pancreatic duct And mucinous cystic tumors often ovary-like interstitial; solid pseudopapillary tumor is a unique morphological and immunophenotypic pancreatic tumors, although low-grade tumors, most of the performance of benign acinar; acinar cells Cystadenoma and pancreatic serous cystadenomas, the vast majority of benign, only a few malignant cases reported; pancreatic cystic tumors are mainly mature teratoma, lymphoid epithelial cyst, cystic lymphangioma And polycystic adenoma-like hamartoma, are benign tumors. Special attention should be paid to primary pancreatic solid tumors secondary to cystic degeneration, may be confused with some primary pancreatic cyst tumors.