title: JAAD grand rounds. Persistent and progressive purpura in a patient with an elevated rheumatoid factor and polyclonal gammopathy (hypergammaglobulinemic purpura of Waldenström).
authors.affiliation: Columbus, Ohio.
authors.forename: Jason
authors.initials: J
authors.lastname: Mathis
authors.affiliation: Columbus, Ohio.
authors.forename: Matthew
authors.initials: M
authors.lastname: Zirwas
authors.affiliation: Columbus, Ohio.
authors.forename: Camille T
authors.initials: CT
authors.lastname: Elkins
authors.affiliation: Columbus, Ohio.
authors.forename: Mark
authors.initials: M
authors.lastname: Bechtel
authors.affiliation: Columbus, Ohio.
authors.forename: Benjamin H
authors.initials: BH
authors.lastname: Kaffenberger
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D006801:Humans; D008297:Male; D011694:Purpura, Hyperglobulinemic / Q000097:blood* / Q000175:diagnosis* / Q000473:pathology; D012217:Rheumatoid Factor / Q000097:blood*
chemical_list: D012217:Rheumatoid Factor