Psoas abscess and Crohn's disease.
D000038:Abscess / Q000209:etiology*; D000328:Adult; D003424:Crohn Disease / Q000150:complications*; D005260:Female; D006119:Groin; D006615:Hip; D006801:Humans; D009135:Muscular Diseases / Q000209:etiology*; D012187:Retroperitoneal Space / Q000473:pathology