[Intestinal obstruction caused by paracecal hernia. 3 case reports and review of the literature]. / Occlusione intestinale da ernia paracecale. Descrizione di tre casi e revisione della letteratura.

The authors report three rare cases of intestinal obstruction due to paracecal hernia observed in 533 small bowel obstructions operated between January 1982 and December 1994 (0.6%). In our experience, all the cases occurred in old female patients. Less than 150 cases are reported in the literature. The authors examine paracecal hernia embryologic aspects to explain its pathogenesis: the rotation of primary intestinal loop determines final intestinal rapports. Preoperative diagnosis is very difficult. Transitory symptoms may appear months or years before intestinal obstruction; these occurrences suggest that internal hernias, like external ones, may spontaneously reduce. Straight abdominal radiographies, performed in all cases here described, demonstrate small bowel levels. There is disproportion between important subjective symptoms and objective finding of a large round bump localized in the right iliac fossa. Authors underline the opportunity of a promptly performed operation: in all our cases we released the incarcerated intestinal loops and sutured hernial foramen. One exitus occurred, on the 4th postoperative day, probably due to pulmonary embolism.