title: Pyogenic sacroiliitis caused by group G Streptococcus.
mesh_terms: D000328:Adult; D001170:Arthritis, Infectious / Q000209:etiology*; D006801:Humans; D008297:Male; D012446:Sacroiliac Joint; D013290:Streptococcal Infections / Q000382:microbiology; D013492:Suppuration