title: A slowly growing flank mass.
authors.affiliation: University of Toronto, Toronto, Ontario;
authors.forename: Philip W
authors.initials: PW
authors.lastname: Lam
authors.affiliation: University of Toronto, Toronto, Ontario; ; Mount Sinai Hospital, Toronto, Ontario;
authors.forename: David Jc
authors.initials: DJ
authors.lastname: Howarth
authors.affiliation: University of Toronto, Toronto, Ontario; ; Mount Sinai Hospital, Toronto, Ontario; ; University Health Network, Toronto, Ontario.
authors.forename: Anthony
authors.initials: A
authors.lastname: Hanbidge
authors.affiliation: University of Toronto, Toronto, Ontario; ; Mount Sinai Hospital, Toronto, Ontario; ; University Health Network, Toronto, Ontario.
authors.forename: Irving E
authors.initials: IE
authors.lastname: Salit