cholangiopathy and chronic diarrhea are relatively common manifestations of aids. cryptosporidium parvum infection is the most common cause of aids cholangiopathy globally. this is the first report of documented cryptosporidium parvum infection in a patient with aids in iran. the patient was a 39-year-old man from afghanistan with watery diarrhea, crampy periumbilical abdominal pain and 20 kg w...