title: Acute appendicitis presenting as melaena.
authors.forename: K C
authors.initials: KC
authors.lastname: Tham
authors.forename: C L
authors.initials: CL
authors.lastname: Kok
authors.forename: T
authors.initials: T
authors.lastname: Hein
mesh_terms: D000208:Acute Disease; D001062:Appendectomy; D001064:Appendicitis / Q000150:complications* / Q000175:diagnosis; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D007416:Intestinal Perforation / Q000150:complications*; D008297:Male; D008551:Melena / Q000175:diagnosis / Q000209:etiology*; D012422:Rupture, Spontaneous