TY - JOUR T1 - The “Small, Dark Tonsil” in Patients Presenting with Metastatic Cervical Lymphadenopathy from an Unknown Primary JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 411 LP - 413 VL - 26 IS - 2 AU - Jacque R. Jumper AU - Nancy J. Fischbein AU - Michael J. Kaplan AU - Harvey Z. Klein AU - William P. Dillon Y1 - 2005/02/01 UR - http://www.ajnr.org/content/26/2/411.abstract N2 - Summary: When squamous cell carcinoma (SCC) involves the palatine tonsils, they are generally enlarged and demonstrate intermediate to high signal intensity on T2-weighted MR images and enhance after gadolinium administration. We have identified two patients with SCC of the tonsil where the affected tonsil has low signal intensity on T2-weighted MR images and is smaller than the contralateral normal tonsil. We present the “small, dark tonsil” as an alternative imaging presentation of SCC and a new sign to look for when evaluating the patient with metastatic lymphadenopathy from an unknown primary tumor. ER -