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Sonographic findings in three cases of carcinoma showing thymus‐like differentiation
Author(s) -
Yamamoto Yayoi,
Yamada Keiko,
Motoi Noriko,
Fujiwara Yoshimasa,
Toda Kazuhisa,
Sugitani Iwao,
Kohno Atsushi
Publication year - 2012
Publication title -
journal of clinical ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.272
H-Index - 61
eISSN - 1097-0096
pISSN - 0091-2751
DOI - 10.1002/jcu.21997
Subject(s) - medicine , thyroid , stroma , pathology , calcification , head and neck , thyroid carcinoma , carcinoma , ultrasound , soft tissue , anatomy , radiology , immunohistochemistry , surgery
Carcinoma showing thymus‐like differentiation (CASTLE) is a rare tumor of the thyroid gland or soft tissues of the head and neck. To our knowledge, there have been only a few reports concerning imaging findings of CASTLE. We report herein the sonographic appearances of three cases of CASTLE. Two tumors were located at the lower part of the thyroid and one had spread throughout the thyroid. Sonograms showed heterogeneously solid tumors without cystic components or calcification. The central part of the tumor was slightly hyperechoic compared with the peripheral part of the tumor. Histologically, the tumors were composed of a mixture of fibrous stroma and epithelial nests. © 2012 Wiley Periodicals, Inc. J Clin Ultrasound 41 :574–578, 2013.