Roentgenogram of the month.
D000367:Age Factors; D001064:Appendicitis / Q000000981:diagnostic imaging*; D001065:Appendix / Q000473:pathology; D002137:Calculi / Q000000981:diagnostic imaging*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology; D011859:Radiography