title: A healthy young woman with sudden, severe abdominal pain.
mesh_terms: D000005:Abdomen; D000328:Adult; D001064:Appendicitis / Q000175:diagnosis; D002690:Chlamydia Infections / Q000150:complications / Q000175:diagnosis*; D002692:Chlamydia trachomatis / Q000302:isolation & purification; D003937:Diagnosis, Differential; D005260:Female; D006069:Gonorrhea / Q000175:diagnosis; D006505:Hepatitis / Q000175:diagnosis; D006801:Humans; D010146:Pain / Q000209:etiology*; D010538:Peritonitis / Q000175:diagnosis; D013577:Syndrome; D014526:Urethritis / Q000175:diagnosis