title: Invited commentary.
authors.affiliation: New Haven, CT.
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Touloukian
mesh_terms: D001064:Appendicitis / Q000097:blood* / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D009504:Neutrophils / Q000378:metabolism*; D014463:Ultrasonography