title: Silent spontaneous retroperitoneal abscess caused by M-type 18 Streptococcus pyogenes.
authors.forename: J M
authors.initials: JM
authors.lastname: Llibre
authors.forename: P
authors.initials: P
authors.lastname: Puig
authors.forename: A
authors.initials: A
authors.lastname: Aloy
authors.forename: J
authors.initials: J
authors.lastname: Roset
authors.forename: J
authors.initials: J
authors.lastname: Torne
mesh_terms: D000038:Abscess / Q000382:microbiology* / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D012187:Retroperitoneal Space / Q000382:microbiology*; D013290:Streptococcal Infections / Q000382:microbiology*; D013297:Streptococcus pyogenes / Q000302:isolation & purification*