Xie Bang-Kun, Guan Yu-Bao, Yuan Xiao-Ping, Li Hai-Gang
Department of Radiology, The Second Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, PR China.
Ai Zheng. 2003 Feb;22(2):192-7.
BACKGROUND & OBJECTIVE: In clinical diagnosis and treatment of thyroid carcinoma, the misdiagnosis rate is about 40%-70%and the recurrence is about 30%. This study was designed to investigate the relationship between the CT features of thyroid carcinoma and its clinical pathology.
Fourty-six cases of thyroid carcinoma, pathologically proven, were retrospectively analyzed for CT and histological findings.
Of 46 patients with thyroid carcinoma, 31 cases showed heterogeneous density, 30 cases showed irregular shape, 37 cases showed untidy margin, 16 cases showed peninsular tubercles around the tumor,and 10 cases showed no complete enhanced ring around the tumor. 20 cases were detected calcifications, including 9 cases fine globular calcifications, 4 cases nodular calcifications, 7 cases mixture calcifications. In addition,"calcified nodule in cyst sign" were found in 7 cases. 23 cases infiltrated the adjacent structures and 15 cases were revealed metastatic lymphadenopathy on the neck.
Some cases of thyroid carcinoma can be diagnosed correctly according to the characteristic manifestations on CT. Different pathological types of thyroid carcinoma were related to calcification manifestations and adjacent structure invasion. CT scan can provide reliable information in selecting therapeutic methods.
在甲状腺癌的临床诊断与治疗中，误诊率约为40% - 70%，复发率约为30%。本研究旨在探讨甲状腺癌的CT特征与其临床病理之间的关系。
回顾性分析46例经病理证实的甲状腺癌患者的CT及组织学检查结果。
46例甲状腺癌患者中，31例表现为密度不均匀，30例形态不规则，37例边界不清，16例肿瘤周围可见半岛状结节，10例肿瘤周围无完整强化环。发现20例有钙化，其中细颗粒状钙化9例，结节状钙化4例，混合性钙化7例。另外，发现7例有“囊内钙化结节征”。23例侵犯相邻结构，15例颈部有转移性淋巴结。
部分甲状腺癌病例可根据CT特征性表现作出正确诊断。甲状腺癌不同病理类型与钙化表现及相邻结构侵犯有关。CT扫描可为治疗方法的选择提供可靠依据。
