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Thallium‐201‐chloride thyroid scintigraphy to evaluate benign and/or malignant nodules usefulness of the delayed scan
Author(s) -
Ochi Hironobu,
Sawa Hisashi,
Fukuda Teruo,
Inoue Yuichi,
Nakajima Hideyuki,
Masuda Yasutami,
Okamura Terue,
Onoyama Yasuto,
Sugano Seiji,
Ohkita Hiyoshi,
Tei Yosyaku,
Kamino Kenjin,
Kobayashi Yasutsugu
Publication year - 1982
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(19820715)50:2<236::aid-cncr2820500213>3.0.co;2-v
Subject(s) - medicine , thyroid , thyroid carcinoma , scintigraphy , nodule (geology) , radiology , thallium , nuclear medicine , chemistry , paleontology , biology , inorganic chemistry
The purpose of this study is to evaluate benign and/or malignant thyroid tumors with 201 TI thyroid scan. We studied 76 cases of histologically verified thyroid tumors, all seen as cold nodules on the 123 I thyroid scan. 201 TI thyroid scan was performed 5–15 minutes (early scan) and 3–5 hours (delayed scan) after intrayenous administration of 1.5–2.0 mCi of 201 TI. In 35 (94.6%) of 37 malignant tumors (anaplastic carcinoma, six; papillary carcinoma, 23; follicullar carcinoma, five; epidermoid carcinoma, one; malignant lymphoma, 1), 201 TI accumulated in the cold nodule of the 123 I thyroid scan on both early and delayed scans. On the other hand, the delayed 201 TI scan was negative in 35 out of 39 (89.7%) benign tumors. Employing early and delayed 201 TI scans, we were able to differentiate most malignant thyroid tumors from those which were benign. False‐negative and ‐positive cases are discussed.