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Korean J Oral Maxillofac Radiol. 2002 Sep;32(3):175-179. Korean. Case Report.
Gang TI , Heo MS , An CH , Choi M , Lee SS , Choi SC , Park TW .
Department of Oral and Maxillofacial Radiology and Dental Research Institute, College of Dentistry, Seoul National University, Korea.
Department of Dental Radiology, College of Dentistry, Kyungpook National University, Korea.
Department of Oral and Maxillofacial Radiology, Dental Research Institute, and BK21, College of Dentistry, Seoul National University, Korea.
Abstract

Follicular carcinomas are the second most common form of thyroid cancer, accounting for 10 to 20% of all thyroid cancers. Follicular carcinomas have a propensity to metastasize via the bloodstream, spreading to bone, lungs, liver, and elsewhere. We described the case of a 48-year-old woman who presented with swelling of the left preauricular area, which was a consequence of a metastatic follicular carcinoma of the masticator space. Plain films showed illdefined erosive bony changes from the left condylar head to the mandibular notch. Contrast-enhanced CT images showed a well circumscribed round mass with well enhancement within left masticator space. On MR images, the mass was heterogenously hyperintense to the muscle on T2-weighted images and isointense or hyperintense to the muscle on T1-weighted images, and showed good enhancement on contrast-enhanced T1-weighted images. Upon microscopic examination, the metastatic mass was found to be composed of fairly uniform cells forming small follicles containing colloid, showing capsular and vascular invasion.

Copyright © 2019. Korean Association of Medical Journal Editors.