title: A rapidly growing flank mass in an infant.
authors.affiliation: The Montreal Children's Hospital of the McGill University Health Center, Montreal, Québec, Canada.
authors.forename: Abdullah
authors.initials: A
authors.lastname: Al-Shaikhi
authors.forename: Kenneth
authors.initials: K
authors.lastname: Shaw
authors.forename: Jean-Martin
authors.initials: JM
authors.lastname: Laberge
mesh_terms: D005260:Female; D006801:Humans; D007223:Infant; D016659:Psoas Abscess / Q000175:diagnosis* / Q000382:microbiology; D013203:Staphylococcal Infections / Q000175:diagnosis; D014057:Tomography, X-Ray Computed