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  • Title: Massive subcutaneous emphysema: an unusual presentation of jejunal perforation.
    Author: Walker MJ, Mozes MF.
    Journal: Am Surg; 1981 Jan; 47(1):45-8. PubMed ID: 7469175.
    Abstract:
    Massive diffuse subcutaneous emphysema resulting from perforation of the proximal jejunum is presented. Seventy-nine reported instances of subcutaneous emphysema of gastrointestinal origin were reviewed. Emphysema originating from the jejunum has not been previously reported. The colon (26 patients) and rectum (16 patients) were the more common sites of perforation. Perforations of the stomach and duodenum were found in 14 patients. The most common site for presentation of the subcutaneous air was the lower abdominal wall and thigh, and the more common causes were carcinoma of the colon and rectum and diverticulitis. The pathogenesis of emphysema in the patient described, as well as in the great majority of other patients, is from intraluminal gas rather than from gas-forming organisms. The air spreads along neurovascular bundles and other anatomic planes and may rapidly reach areas distant from the perforation. The recognition of these phenomena in the diagnosis of gastrointestinal perforation is important.
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