title: Rectal bloody diarrhea in an 18-month-old male.
mesh_terms: D006800:Deltaretrovirus Infections / Q000150:complications / Q000175:diagnosis; D003937:Diagnosis, Differential; D003968:Diarrhea, Infantile / Q000150:complications* / Q000175:diagnosis; D006471:Gastrointestinal Hemorrhage / Q000150:complications* / Q000175:diagnosis; D006679:HIV Seropositivity; D006801:Humans; D007223:Infant; D008297:Male; D012007:Rectum