If the images present a bulky, symmetric nasopharyngeal mass with marked homogeneity, a high degree of enhancement, and a higher Waldeyer ring involvement combined with no invasion into the deep structure, PNL should be considered over NPC.
Department of Otorhinolaryngology and Medical Research Institute, Pusan National University School of Medicine, Busan, South Korea.
Otolaryngol Head Neck Surg. 2012 Apr;146(4):574-8
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