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  • Title: Jejunal diverticulosis.
    Author: Meagher AP, Porter AJ, Rowland R, Ma G, Hoffmann DC.
    Journal: Aust N Z J Surg; 1993 May; 63(5):360-6. PubMed ID: 8481136.
    Abstract:
    Jejunal diverticulosis is considered to be a generally asymptomatic condition in which the diverticula are pulsion mucosal herniations with walls lacking a muscle layer. These opinions in particular are examined in this review of 20 cases of jejunal diverticulosis treated during an 8 year period. The predominant complication in each case was inflammation or perforation (nine), diarrhoea or malabsorption (five), haemorrhage (three), chronic abdominal pain (two) and pseudo-obstruction (one). At least 10 patients had more than one complication, although this was often unrecognized. Ten patients complained of chronic abdominal pain, in eight of whom the cause was not diagnosed until other complications supervened. Unrecognized malabsorption may be common, as the mean serum albumin in 12 patients presenting acutely with inflammation, perforation or haemorrhage, was low (mean 32 g/L, normal 39-48 g/L). Histology sections were reviewed in the 12 cases that underwent resection, of whom 11 were suitable for classification. Four cases had narrow-mouthed pulsion diverticula with a thin or absent muscle coat, and had developed at the point of blood vessel penetration. Four cases had wide-mouthed diverticula in which the muscle layer was present, suggesting an abnormality of the intestinal wall. Two had features of both. In one case a Meckel's type diverticulum was located 10 cm from the duodenal-jejunal flexure. Seven had mucosal villous atrophy consistent with bacterial overgrowth. In conclusion, jejunal diverticulosis may be associated with complications more frequently than has been recognized and pathologically is a diverse condition.
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