title: [CT and MRI features of primary malignant melanoma in sacral bone: report of four cases].
authors.forename: Jing
authors.initials: J
authors.lastname: Xhen
authors.forename: Ai-lan
authors.initials: AL
authors.lastname: Ruan
authors.forename: Lin
authors.initials: L
authors.lastname: Zhang
authors.forename: Hai-jun
authors.initials: HJ
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008545:Melanoma / Q000175:diagnosis* / Q000473:pathology; D012447:Sacrum; D014057:Tomography, X-Ray Computed