title: Pure clear cell papillary thyroid carcinoma with chronic thyroiditis: report of a case.
abstract: We herein report a case of pure clear cell papillary thyroid carcinoma, which is the first reported case in Japan. The tumors measured 1.0 x 0.9 and 0.7 x 0.4 cm in size. An ultrasonographical examination revealed hypoechoic irregular-shaped lesions with fine internal calcifications. No lymph node metastasis was observed in any of the surgical specimens. Distant metastasis had not been observed as of 6 years after surgical treatment. The number of cases of pure clear cell papillary carcinoma reported so far are too few to clearly elucidate its characteristics; however, the ultrasonographical findings and biological behavior of this case were compatible with those of non-clear cell papillary thyroid carcinoma.
authors.affiliation: Department of Surgery, The Shinshu University School of Medicine, Matsumoto, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Asanuma
authors.forename: A
authors.initials: A
authors.lastname: Sugenoya
authors.forename: T
authors.initials: T
authors.lastname: Ohashi
authors.forename: N
authors.initials: N
authors.lastname: Nagai
authors.forename: N
authors.initials: N
authors.lastname: Itoh
authors.forename: S
authors.initials: S
authors.lastname: Kobayashi
authors.forename: J
authors.initials: J
authors.lastname: Amano
mesh_terms: D002291:Carcinoma, Papillary / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology*; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008875:Middle Aged; D013964:Thyroid Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology*; D013966:Thyroiditis / Q000150:complications*; D014463:Ultrasonography