MRI is widely used in diagnosis in nasal cavity and sinuses lesions due to superior soft-tissue resolution and multiplanar capabilities.These lesions cannot be distinguished based solely on their typical signs or features.The CCP is not specific to IP; although some studies reported up to 80% of the cases, it is also present in malignant masses, such as non-Hodgkin’s lymphoma (NHL), squamous cell carcinoma, esthesioneuroblastoma, and adenocarcinoma.In small and abundant edematous stroma band lesions, the CCP pattern cannot be detected. Other studies show intestinal pattern enhancement could associated with a fibrous band presence, being similar to CCP on T1W C+.Among atypical features in those lesions, studies demonstrated that ADC values were the most valuable metric for differentiation, including types of sclerosis in computerized tomography, presence of central necrosis, intracranial extension, and enhancement pattern.