Ultrasonography 2014;33(4):298-302

doi:10.14366/usg.14025

Aggressive primary thyroid lymphoma: imaging features of two elderly patients.

Eu Hyun KIM 1 ; Jee Young KIM ; Tae Jung KIM

Affiliations

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Keywords

Thyroid gland; Lymphoma; Ultrasonography; Multidetector computed tomography

Country

Republic of Korea

Language

English

Abstract

We report two cases of aggressive thyroid lymphoma in elderly patients that presented as Epub ahead of print large infiltrative thyroid masses with extensive invasion to adjacent structures including trachea, esophagus, and common carotid artery. Ultrasonography displayed irregular shaped, heterogeneous hypoechoic mass, mimicking anaplastic carcinoma. Computed tomography showed heterogeneously enhancing mass compared to surrounding muscles without calcification and hemorrhage. After biopsy, the masses were histopathologically diagnosed as lymphoma. Aggressive primary thyroid lymphoma is rare; therefore, here we report its image features, with emphasis on ultrasonographic findings, and discuss its differential diagnosis.