September 22, 2026 · Radiology · DOI: 10.1148/radiol.260053

Reliability and Validity of Imaging-derived Extranodal Extension Grading Using CT and MRI in Nasopharyngeal Carcinoma

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The authors aimed to evaluate the reliability and prognostic value of a proposed imaging-derived extranodal extension (iENE) grading system in patients with nasopharyngeal carcinoma (NPC). The study found that the iENE grading demonstrated excellent inter- and intrarater reliability and was associated with significant differences in overall survival and distant metastasis-free survival, indicating its potential as a valuable prognostic tool in NPC staging.

Pae Sun Suh, Jinna Kim, Dong Eon Kim, Kyunghwa Han, Kyung Hwan Kim, Hye Ryun Kim, Sun Och Yoon, Yoon Woo Koh

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