JaLCDOI 10.18926/AMO/56375
FullText URL 72_6_577.pdf
Author Makino, Takuma| Orita, Yorihisa| Tachibana, Tomoyasu| Marunaka, Hidenori| Miki, Kentaro| Akisada, Naoki| Akagi, Yusuke| Usui, Yoshiyuki| Sato, Yasuharu| Yoshino, Tadashi| Nishizaki, Kazunori|
Abstract Since no diagnostic method has been established to distinguish follicular thyroid carcinoma (FTC) from follicular thyroid adenoma (FTA), surgery has been the only way to reach a diagnosis of follicular neoplasm. Here we investigated the computed tomography (CT) features of follicular neoplasms, toward the goal of being able to identify specific CT features allowing the preoperative differentiation of FTC from FTA. We retrospectively analyzed the cases of 205 patients who underwent preoperative CT of the neck and were histopathologically diagnosed with FTC (n=31) or FTA (n=174) after surgery between January 2002 and June 2016 at several hospitals in Japan. In each of these 205 cases, non-enhanced and contrast-enhanced CT images were obtained, and we analyzed the CT features. On univariate analysis, inhomogeneous features of tumor lesions on contrast-enhanced CT were more frequently observed in FTC than in FTA (p=0.0032). A multivariate analysis identified inhomogeneous features of tumor lesions on contrast-enhanced CT images as an independent variable indicative of FTC (p=0.0023). CT thus offers diagnostic assistance in distinguishing FTC from FTA.
Keywords computed tomography follicular thyroid carcinoma follicular thyroid adenoma preoperative diagnosis
Amo Type Original Article
Published Date 2018-12
Publication Title Acta Medica Okayama
Volume volume72
Issue issue6
Publisher Okayama University Medical School
Start Page 577
End Page 581
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 30573912
NAID 120006545160
JaLCDOI 10.18926/AMO/52791
FullText URL 68_4_249.pdf
Author Ogawara, Yuya| Tachibana, Tomoyasu| Orita, Yorihisa| Uchino, Kaori| Wani, Yoji| Nagahiro, Itaru| Matsuyama, Yuko| Abe, Iku| Fujisawa, Masayoshi| Nishizaki, Kazunori|
Abstract We describe an extremely rare case of tracheal stenosis caused by unnoticed microscopic fiber-like foreign bodies. A 66-year-old woman complained of dyspnea with inspiratory stridor. Magnifying electroendoscopy and computed tomography revealed stenosis involving the entire circumference of the tracheal lumen. Tracheotomy and biopsy were performed. Histologically, the lesion showed chronic inflammation with a deposition of fiber-like foreign bodies. The patient had no history of trauma or inhalation injury, but had undergone intratracheal intubation on 4 occasions. The lesion was incised using semiconductor laser photoresection, and the postoperative course was good. To the best of our knowledge, this represents the first report in the English literature of tracheal stenosis caused by unnoticed foreign bodies. The origin of these fiber-like foreign bodies remains unclear but might be related to chronic inflammation resulting from intratracheal intubations.
Keywords tracheal stenosis fibrous foreign body intubation tracheotomy laser
Amo Type Case Report
Published Date 2014-08
Publication Title Acta Medica Okayama
Volume volume68
Issue issue4
Publisher Okayama University Medical School
Start Page 249
End Page 252
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2014 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 25145411
Web of Sience KeyUT 000340687500007
JaLCDOI 10.18926/AMO/49258
FullText URL 67_1_61.pdf
Author Tachibana, Tomoyasu| Orita, Yorihisa| Fujisawa, Masayoshi| Ogawara, Yuya|
Abstract Thyroid carcinomas arising from ectopic thyroid tissue are uncommon;most of them arise from thyroid tissue in thyroglossal cysts. A rare case of a 66-year-old woman with papillary thyroid carcinoma arising from median ectopic thyroid tissue lacking a thyroglossal duct remnant is reported. The tumor was resected by Sistrunk's procedure, and the patient's postoperative course was good.
Keywords ectopic thyroid papillary thyroid carcinoma thyroglossal duct remnant
Amo Type Case Report
Published Date 2013-02
Publication Title Acta Medica Okayama
Volume volume67
Issue issue1
Publisher Okayama University Medical School
Start Page 61
End Page 64
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2013 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23439510
Web of Sience KeyUT 000316829900008