China: Threshold of 6 mm on Retropharyngeal Lymph Node Predicts PFS in Nasopharyngeal Carcinoma

For patients with nasopharyngeal carcinoma (NPC), a minimal axial diameter (MAD) threshold of 6 mm for retropharyngeal lymph node (RLN) predicts survival, according to a study published online Sept. 27 in the American Journal of Roentgenology.

Yuliang Zhu, Ph.D., from Zhongshan City People’s Hospital in China, and colleagues investigated the optimal size thresholds for determining the presence of metastatic RLNs on magnetic resonance imaging (MRI) in a retrospective study involving 1,752 patients with NPC treated by intensity-modulated radiotherapy from January 2010 to March 2014. A total of 438 patients underwent MRI three to four months after treatment.

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