Differentiation of benign from malignant nodules by accumulation of Tc- 99m pertechnetate using TI-201 delayed scans

Yoshihiro Okumura; Yoshihiro Takeda; Shuhei Sato; Mituharu Shimizu; Megumi Komatsu; Osamu Honda; Tomio Nakagawa; Harutaka Niiya; Yoshio Hiraki

doi:10.1097/00003072-199808000-00004

Differentiation of benign from malignant nodules by accumulation of Tc- 99m pertechnetate using TI-201 delayed scans

Yoshihiro Okumura, Yoshihiro Takeda, Shuhei Sato, Mituharu Shimizu, Megumi Komatsu, Osamu Honda, Tomio Nakagawa, Harutaka Niiya, Yoshio Hiraki

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Thyroid carcinoma usually is characterized by a nonfunctioning or 'cold' nodule depicted on the Tc-99m scan. Twelve patients with functioning 'hot' thyroid nodules underwent thyroidectomy (nine hemithyroidectomies, two nodulectomies, and one subtotal thyroidectomy). Histologic examination revealed that five patients (42%) had malignant nodules (papillary carcinoma in two and follicular carcinoma in three). Of the seven patients with benign nodules, five had follicular adenoma and two had adenomatous hyperplasia. TI- 201 scanning (early and delayed) was performed at the same time as Tc-99m scanning. Only one of the seven benign nodules showed accumulation on the delayed TI-201 scan, whereas all five malignant nodules showed accumulation. The delayed TI-201 scan is useful for the differentiation of benign from malignant nodules that show accumulation of Tc-99m pertechnetate.

Original language	English
Pages (from-to)	514-516
Number of pages	3
Journal	Clinical Nuclear Medicine
Volume	23
Issue number	8
DOIs	https://doi.org/10.1097/00003072-199808000-00004
Publication status	Published - Aug 1 1998

Keywords

TI-201
Tc-99m Pertechnetate
Thyroid Nodule

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging

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Differentiation of benign from malignant nodules by accumulation of Tc- 99m pertechnetate using TI-201 delayed scans. / Okumura, Yoshihiro; Takeda, Yoshihiro; Sato, Shuhei; Shimizu, Mituharu; Komatsu, Megumi; Honda, Osamu; Nakagawa, Tomio; Niiya, Harutaka; Hiraki, Yoshio.

In: Clinical Nuclear Medicine, Vol. 23, No. 8, 01.08.1998, p. 514-516.

Research output: Contribution to journal › Article › peer-review

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abstract = "Thyroid carcinoma usually is characterized by a nonfunctioning or 'cold' nodule depicted on the Tc-99m scan. Twelve patients with functioning 'hot' thyroid nodules underwent thyroidectomy (nine hemithyroidectomies, two nodulectomies, and one subtotal thyroidectomy). Histologic examination revealed that five patients (42%) had malignant nodules (papillary carcinoma in two and follicular carcinoma in three). Of the seven patients with benign nodules, five had follicular adenoma and two had adenomatous hyperplasia. TI- 201 scanning (early and delayed) was performed at the same time as Tc-99m scanning. Only one of the seven benign nodules showed accumulation on the delayed TI-201 scan, whereas all five malignant nodules showed accumulation. The delayed TI-201 scan is useful for the differentiation of benign from malignant nodules that show accumulation of Tc-99m pertechnetate.",

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AU - Sato, Shuhei

AU - Shimizu, Mituharu

AU - Komatsu, Megumi

AU - Honda, Osamu

AU - Nakagawa, Tomio

AU - Niiya, Harutaka

AU - Hiraki, Yoshio

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N2 - Thyroid carcinoma usually is characterized by a nonfunctioning or 'cold' nodule depicted on the Tc-99m scan. Twelve patients with functioning 'hot' thyroid nodules underwent thyroidectomy (nine hemithyroidectomies, two nodulectomies, and one subtotal thyroidectomy). Histologic examination revealed that five patients (42%) had malignant nodules (papillary carcinoma in two and follicular carcinoma in three). Of the seven patients with benign nodules, five had follicular adenoma and two had adenomatous hyperplasia. TI- 201 scanning (early and delayed) was performed at the same time as Tc-99m scanning. Only one of the seven benign nodules showed accumulation on the delayed TI-201 scan, whereas all five malignant nodules showed accumulation. The delayed TI-201 scan is useful for the differentiation of benign from malignant nodules that show accumulation of Tc-99m pertechnetate.

AB - Thyroid carcinoma usually is characterized by a nonfunctioning or 'cold' nodule depicted on the Tc-99m scan. Twelve patients with functioning 'hot' thyroid nodules underwent thyroidectomy (nine hemithyroidectomies, two nodulectomies, and one subtotal thyroidectomy). Histologic examination revealed that five patients (42%) had malignant nodules (papillary carcinoma in two and follicular carcinoma in three). Of the seven patients with benign nodules, five had follicular adenoma and two had adenomatous hyperplasia. TI- 201 scanning (early and delayed) was performed at the same time as Tc-99m scanning. Only one of the seven benign nodules showed accumulation on the delayed TI-201 scan, whereas all five malignant nodules showed accumulation. The delayed TI-201 scan is useful for the differentiation of benign from malignant nodules that show accumulation of Tc-99m pertechnetate.

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