title: Quiz case of the month.
authors.affiliation: Department of Radiology, Gasthuisberg University Hospital, Catholic University of Leuven, Belgium.
authors.forename: P
authors.initials: P
authors.lastname: Dekimpe
authors.forename: S
authors.initials: S
authors.lastname: Dymarkowski
authors.forename: P
authors.initials: P
authors.lastname: Bomans
authors.forename: J
authors.initials: J
authors.lastname: Bogaert
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008479:Mediastinal Neoplasms / Q000175:diagnosis*; D013724:Teratoma / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed