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目的：探讨以囊性成分为主的甲状腺乳头状癌的ＣＴ特征。方法：分析１２例病理证实的甲状腺囊性乳头状癌ＣＴ资料。结果：所有肿物均有如下ＣＴ表现：以囊性为主，内壁有大小不等的实性软组织结节，软组织结节内有沙粒状高密度钙化点或钙化斑（囊内钙化结节）。讨论：“囊内钙化性结节”征对囊性甲状腺癌的诊断有特异性
Objective: To investigate the CT features of cystic papillary thyroid carcinoma. Methods: CT data of 12 cases of pathologically confirmed thyroid cystic papillary carcinoma were analyzed. RESULTS: All tumors had the following CT findings: cystic predominance, solid soft-tissue nodules with varying sizes on the inner wall, and sand-like high-density calcifications or calcified plaques (intracapsular calcified nodules) in soft-tissue nodules. . Discussion: The “capsular calcified nodules” sign is specific for the diagnosis of cystic thyroid cancer