title: 'Twas the night before Grand Round ….
authors.affiliation: The Walton Centre NHS Foundation Trust, Liverpool, UK richard.ellis@thewaltoncentre.nhs.uk.
authors.forename: Richard J B
authors.initials: RJ
authors.lastname: Ellis
authors.affiliation: Holy Spirit Northside, Brisbane, QLD.
authors.forename: Barnaby N
authors.initials: BN
authors.lastname: Hirons
authors.affiliation: The Ash Surgery, Liverpool, UK.
authors.forename: Alexandra E
authors.initials: AE
authors.lastname: May
authors.affiliation: University Hospital Aintree, Liverpool, UK.
authors.forename: David J
authors.initials: DJ
authors.lastname: McCreary
authors.affiliation: Whiston Hospital, Prescot, UK.
authors.forename: Nicholas D
authors.initials: ND
authors.lastname: Peterson
authors.affiliation: Southport Hospital, Southport, UK.
authors.forename: Leonard M
authors.initials: LM
authors.lastname: Quinn
authors.affiliation: The Walton Centre NHS Foundation Trust, Liverpool, UK.
authors.forename: Besa
authors.initials: B
authors.lastname: Ziso
authors.affiliation: The Walton Centre NHS Foundation Trust, Liverpool, UK.
authors.forename: Michael
authors.initials: M
authors.lastname: Bonello
authors.affiliation: The Walton Centre NHS Foundation Trust, Liverpool, UK.
authors.forename: Brython
authors.initials: B
authors.lastname: Hywel
authors.affiliation: The Walton Centre NHS Foundation Trust, Liverpool, UK.
authors.forename: Benedict D
authors.initials: BD
authors.lastname: Michael
authors.affiliation: Clatterbridge Hospital, Wirral, UK.
authors.forename: Sean D
authors.initials: SD
authors.lastname: Brown
authors.affiliation: Liverpool Heart and Chest Hospital, Liverpool, UK.
authors.forename: Benjamin D
authors.initials: BD
authors.lastname: Murray
authors.affiliation: Market Street Surgery, Newton Le Willows, UK.
authors.forename: Duncan M
authors.initials: DM
authors.lastname: Rogers
authors.affiliation: The Old Post Office Clinic, Ingleton, UK.
authors.forename: Matt
authors.initials: M
authors.lastname: Barrett
authors.affiliation: The Walton Centre NHS Foundation Trust, Liverpool, UK.
authors.forename: Mark
authors.initials: M
authors.lastname: Doran
mesh_terms: D003937:Diagnosis, Differential; D006406:Hematoma / Q000175:diagnosis*; D006693:Holidays; D006801:Humans; D008160:Lumbosacral Plexus / Q000098:blood supply*; D008279:Magnetic Resonance Imaging; D008297:Male