Fig. 2From: An MRI-based radiomics nomogram for detecting cervical esophagus invasion in hypopharyngeal squamous cell carcinomaTumor segmentation of hypopharyngeal squamous cell carcinoma. The segmentation was performed on T2-weighted imaging (a) and contrast-enhanced T1-weighted imaging (b). By drawing regions of interest slice by slice, a region of interest covering the entire tumor (c) was acquiredBack to article page