title: [Relationship between computed tomography (CT) manifestations and pathology in thyroid carcinoma].
abstract: 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.
  
  
  METHODS
  Fourty-six cases of thyroid carcinoma, pathologically proven, were retrospectively analyzed for CT and histological findings.
  
  
  RESULTS
  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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Radiology, The Second Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, PR China.
authors.forename: Bang-Kun
authors.initials: BK
authors.lastname: Xie
authors.forename: Yu-Bao
authors.initials: YB
authors.lastname: Guan
authors.forename: Xiao-Ping
authors.initials: XP
authors.lastname: Yuan
authors.forename: Hai-Gang
authors.initials: HG
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000503:physiopathology; D014057:Tomography, X-Ray Computed