Paraganglioma of the thyroid: Report of a male case with ultrasonographic imagings, cytologic, histologic, and immunohistochemical features

Yukiko Yano, Mitsuji Nagahama, Kiminori Sugino, Kunihiko Ito, Kaori Kameyama, Koichi Ito

Research output: Contribution to journalArticle

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Abstract

Objective: Thyroid paragangliomas are rare tumors, and both preoperative and postoperative differential diagnosis is difficult. We report the case of a 24-year-old man with a thyroid paraganglioma and the ultrasonographic imaging, histologic, and immunohistochemical findings. Design: The patient presented with an asymptomatic thyroid nodule. An ultrasonogram showed a 3-cm-diameter solid nodule in the upper portion of the right lobe of thyroid, and color Doppler ultrasonography revealed intranodular hypervascular flows. Fine-needle aspiration biopsy yielded single cells and loose clusters of round to oval cells containing ovoid nuclei. A clinical diagnosis of follicular thyroid tumor was made, and right thyroid lobectomy was performed. The tumor was encapsulated and exhibited a prominent lobular pattern. To differentiate between thyroid paraganglioma and other thyroid neoplasms, paraffin sections of the specimen were immunochemically stained with antibodies to calcitonin (CT), carcinoembryonic antigen (CEA), chromogranin A, neuron-specific enolase (NSE), S-100, and thyroglobulin. Main outcome: The immunohistochemical staining was positive for chromogranin A and NSE and negative for thyroglobulin, CT, CEA, and S-100. Congo red staining was also negative. Based on these findings, final diagnosis of thyroid paraganglioma was made. Conclusions: The definitive diagnosis of paraganglioma is made on the basis of the results of immunohistochemical staining. The diagnosis of thyroid paraganglioma is difficult to make both preoperatively and postoperatively.

Original languageEnglish
Pages (from-to)575-578
Number of pages4
JournalThyroid
Volume17
Issue number6
DOIs
Publication statusPublished - 2007 Jun

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Paraganglioma
Thyroid Gland
Chromogranin A
Phosphopyruvate Hydratase
Thyroglobulin
Carcinoembryonic Antigen
Calcitonin
Staining and Labeling
Doppler Color Ultrasonography
Congo Red
Neoplasms
Thyroid Nodule
S100 Proteins
Fine Needle Biopsy
Thyroid Neoplasms
Paraffin
Differential Diagnosis
Antibodies

ASJC Scopus subject areas

  • Endocrinology

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Paraganglioma of the thyroid : Report of a male case with ultrasonographic imagings, cytologic, histologic, and immunohistochemical features. / Yano, Yukiko; Nagahama, Mitsuji; Sugino, Kiminori; Ito, Kunihiko; Kameyama, Kaori; Ito, Koichi.

In: Thyroid, Vol. 17, No. 6, 06.2007, p. 575-578.

Research output: Contribution to journalArticle

Yano, Yukiko ; Nagahama, Mitsuji ; Sugino, Kiminori ; Ito, Kunihiko ; Kameyama, Kaori ; Ito, Koichi. / Paraganglioma of the thyroid : Report of a male case with ultrasonographic imagings, cytologic, histologic, and immunohistochemical features. In: Thyroid. 2007 ; Vol. 17, No. 6. pp. 575-578.
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