To the Editor:A 67-year-old man presented with recurrent diarrhea and abdominal pain of increasing severity for 7 months in May 2016.He had mucopurulent stool for about 4-6 times a day,with bellyache,tenesmus,and weight loss.He took a colonoscopy,which showed universal colitis,and a biopsy revealed crypt abscesses and inflammatory cell infiltration and he was diagnosed with ulcerative colitis (UC).
作者单位:Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China;Department of Leukaemia, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China[1]Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China[2]