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| Differential Diagnosis of a Follicular Carcinoma and Papillary Carcinoma of the Thyroid Gland Based on Sonographic Findings |
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| Kyung Sik Yi, M.D. Il Hun Bae, M.D., Seung Young Lee, M.D., Min Hee Jeon, M.D. |
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| Department of Radiology, College of Medicine and Medical Research Institute, Chungbuk National University |
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| PURPOSE : The purpose of this study was to evaluate and compare the sonographic findings of a conventional papillary
carcinoma, follicular carcinoma and a follicular variant of a papillary carcinoma.
MATERIALS and METHODS : A total of 308 nodules from 231 patients that were diagnosed with a papillary carcinoma
and a follicular carcinoma by surgery after sonography were analyzed. The nodules consisted of a conventional
papillary carcinoma (255, 83%), a follicular variant of a papillary carcinoma (25, 8%), and a follicualar carcinoma
(28, 9%). We compared and analyzed the sonographic findings of each nodule for content, margin, echotexture,
shape, calcification and halo sign.
RESULTS : A conventional papillary carcinoma showed significant different sonographic findings than a follicular
carcinoma and a follicular variant of a papillary carcinoma for an ill-defined or well-defined spiculated margin
(63.1%), marked hypoechogenicity (85.9%) and microcalcification (49%). A follicular carcinoma showed a
significant difference than a conventional papillary carcinoma for a well-defined smooth margin (92.9%), iso,
hypo- or hyperechogenicity (89.3%), wider than tall shape (100%) and halo sign (82.1%). The follicular variant
of a papillary carcinoma showed similar findings to a follicular carcinoma except for marked hypoechogenicity
(44%, p = 0.006) and taller than wide shape (16%, p = 0.027).
CONCLUSION : The follicular carcinoma and follicular variant of a papillary carcinoma showed similar sonographic
findings, but findings of a conventional papillary carcinoma were different. |
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| Keyword : Thyroid, neoplasms, US |
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pdf파일 : 183-188이경식.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2007 ; 26 (4) : p.183-188
