Graphical depiction of the prevalence of identified cocaine-induced midline lesions according to their location. A non-CIMDL patient coronal computed tomography image is used as an anatomical reference. Yellow: grade 1 CIMDL region (nasal septum, 99.2% of patients); red: grade 2a CIMDL region (inferior turbinate and maxillary sinus medial wall, 59% of patients); green: grade 2b CIMDL region (palate, 29.9% of patients); blue: grade 3 CIMDL region (ethmoid bone, middle turbinate and superior turbinate, 22.8% of patients); purple, grade 4 CIMDL region (papyracea, orbit or skull base, 7.9% of patients)