title: Empyema. A rare presentation of perforated appendicitis.
mesh_terms: D001064:Appendicitis / Q000150:complications* / Q000175:diagnosis; D002675:Child, Preschool; D004653:Empyema / Q000209:etiology*; D004926:Escherichia coli / Q000302:isolation & purification; D005260:Female; D006801:Humans; D007416:Intestinal Perforation / Q000150:complications*; D008297:Male; D008875:Middle Aged; D013492:Suppuration / Q000382:microbiology; D013997:Time Factors