Utility of apparent diffusion coefficient values in preoperative MRI for sinonasal tumors: Categorization of benign tumors excluding Papillomas, Papillomas, and malignant tumors

ADCmean values from DWI-MRI can effectively differentiate between benign tumors excluding papillomas, papillomas, and malignant tumors. Although not as accurate as biopsy, ADC-based categorization adds diagnostic value, especially in cases where biopsy is inconclusive or infeasible. Combining ADC analysis with biopsy findings may improve preoperative diagnostic accuracy and assist clinical decision-making in managing sinonasal tumors.