PT  - JOURNAL ARTICLE
AU  - A T Ahuja
AU  - E S Chan
AU  - P W Allen
AU  - K Y Lau
AU  - W King
AU  - C Metreweli
TI  - Carcinoma showing thymiclike differentiation (CASTLE tumor).
DP  - 1998 Aug 01
TA  - American Journal of Neuroradiology
PG  - 1225--1228
VI  - 19
IP  - 7
4099  - http://www.ajnr.org/content/19/7/1225.short
4100  - http://www.ajnr.org/content/19/7/1225.full
SO  - Am. J. Neuroradiol.1998 Aug 01; 19
AB  - A 67-year-old woman had had a neck mass for 10 years, which recently increased in size. Sonographic, CT, and MR examinations showed a mass in the carotid and posterior spaces (triangle) extending from below the submandibular gland to the supraclavicular fossa, displacing the common carotid artery and the sternomastoid anteriorly. The mass was solid, noncalcified with lobulated outlines, hypoechoic on sonograms, of soft-tissue density on CT scans, isointense on T1-weighted MR images, hyperintense on T2-weighted MR images, and enhanced mildly after injection of contrast material on CT and MR studies. Histologic examination revealed a carcinoma showing thymiclike differentiation, a rare tumor of the neck and thyroid gland.