片岡 伸一¹, 井出 満², 栄 則久², 林 光久², 黒原 進司², 櫛引 千恵子³, 浅野 恵子³, 西戸 温美³, 橋本 卓⁴, 武富 浩也⁴, 大地 宏昭¹, 豊永 高史¹, 土細工 利夫¹, 湯浅 肇⁵, 廣岡 大司¹

Shinichi KATAOKA¹, Mituru IDE², Norihisa SAKAE², Mituhisa HAYASHI², Shinji KUROHARA², Chieko KUSHIBIKI³, Keiko ASANO³, Atumi NISHIDO³, Takashi HASHIMOTO⁴, Hiroya TAKETOMI⁴, Hiroaki OOCHI¹, Takashi TOYONAGA¹, Toshio DOZAIKU¹, Hajime YUASA⁵, Takashi HIROOKA¹

¹岸和田徳洲会病院内科, ²岸和田徳洲会病院腹部超音波室, ³岸和田徳洲会病院細菌検査室, ⁴岸和田徳洲会病院小児科, ⁵天竜厚生会さいわい医療保健部

¹Department of Internal Medicine, Kishiwada Tokusyukai Hospital, ²Department of Abdominal Ultrasonography, Kishiwada Tokusyukai Hospital, ³Department of Bacteriology, Kishiwada Tokusyukai Hospital, ⁴Department of Pediatrics, Kishiwada Tokusyukai Hospital, ⁵Department of Health Insurance, Tenryu Koseikai Saiwai Hospital

キーワード : Appendix, <I>Campylobacter</I> enterocolitis, <I>Escherichia coil</I> O157: H7, <I>Salmonella</I> enterocolitis, Ultrasonography

We studied five cases of hemorrhagic colitis during an outbreak of Escherichia coli O157: H7 infections in the city of Sakai, Japan, July 1996. All the patients were school children, and all had crampy abdominal pain and bloody diarrhea; however, none had hemorrhagic uremic syndrome. They made favorable progress and were discharged in 1 week. E coli O157: H7 was isolated from the stools of three of them. Sonography showed the mural walls of all the patients to be extremely thick from the cecum to the rectum, and the ileocolic lymph nodes of all five were swollen. Paralytic dilatation of the colon was observed in two patients. The appendix was identified, and moderate amounts of ascites were observed in all five. We studied the sonographic findings of Salmonella enterocolitis and Campylobacter enterocolitis to compare them with those from O157 enterocolitis. The intestinal wall in O157 enterocolitis was thicker throughout the colon than in the other types of bacterial enterocolitis (pCampylobacter enterocolitis(pSalmonella enterocolitis (p=0.04). Ascites was more frequently encountered in O157 enterocolitis(p