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随着多种影像学技术的广泛应用,胰腺囊性病变日益增多。在一大宗病例常规超声检查报道中,胰腺囊性病变发生率为0.21%,其中假性囊肿约占80%,而囊性肿块占10%。部分病例,如胰腺腺癌、淋巴瘤和肉瘤也可因坏死而出现囊性改变。有时,胰腺外囊性改变如肾囊肿及肾上腺囊肿也易被误诊为胰腺囊肿。1诊断1.1CT和MRCP检查CT能确定囊肿的大小和部位,但鉴别浆液性和黏液性肿块是困难的,因为浆液性囊腺瘤的影像学变异性与黏液性腺瘤的CT表现有很大的重叠,大多数浆液性者仍需要辅助检查如活检才能确诊,肿块是否存在钙化及钙化的部位是有助于确定诊断的一个重要特征。有超过25%的黏液性肿瘤表现为周边钙化;而浆液性瘤的特点是有
With the extensive application of a variety of imaging techniques, pancreatic cystic lesions are increasing. In a large number of cases reported by conventional ultrasound, the incidence of pancreatic cystic lesions was 0.21%, of which about 80% of pseudocysts, cystic mass and 10%. In some cases, such as pancreatic adenocarcinoma, lymphoma and sarcoma, cystic changes may also occur due to necrosis. Sometimes, pancreatic cystic changes such as renal cysts and adrenal cysts are also easily misdiagnosed as pancreatic cysts. 1 Diagnosis 1.1 CT and MRCP CT can determine the size and location of the cyst, but the differential diagnosis of serous and mucinous lumps is difficult because of the imaging variability of serous cystadenoma and mucinous adenoma CT performance has a great Overlapping, most serous individuals still need ancillary examinations such as biopsy to confirm the presence of calcification and calcification of the site is helpful in determining the diagnosis of an important feature. There are more than 25% of mucinous tumors showed peripheral calcification; and serous tumors are characterized by