Comparison of visualization of a CCP on MR imaging between inverted papilloma and various malignant sinonasal tumors

TumorNo. of Total SubjectsNo. of Subjects Showing CCP on MR Imaging
Inverted papilloma302642830
    Without SCC222202022
    With SCC84488
Malignant tumors1286111317
    Adenoid cystic carcinoma101112
    Malignant melanoma80101
    Primitive neuroectodermal tumor21011
    Ameloblastic carcinoma10000
    Mucoepidermoid carcinoma11011
    Undifferentiated carcinoma10111
    Non-keratinizing carcinoma10000
  • Note:—CCP indicates convoluted cerebriform pattern; T2WI, T2-weighted image; CE-T1WI, contrast-enhanced T1-weighted image; SCC, squamous cell carcinoma.