Smoke trails of a dying gut: portal and mesenteric vein gas.
نویسندگان
چکیده
DESCRIPTION A 49-year-old male, status postresection of melanoma 2 years ago, presentedwith constipation, abdominal pain and abdominal distension for the last 1week.CT abdomenwith contrast showed small bowel obstruction and a transition point was identified in the central abdomen (figure 1). Also noted were innumerable hepatic and splenic metastases (figure 2), and innumerable abdominal lymph nodes, largest one measuring 6.9 cm. After 3 h, a repeat CT abdomen was performed to look for delayed passage of contrast beyond the transition point. In this interim, the patient developed small bowel pneumatosis, with new mesenteric and portal venous gas (figures 3 and 4). An emergency laparotomy was performed. The entire mid small bowel was covered with fibrinous exudate with evidence of ischaemia and perforation. Ischaemia and obstructionwas from strangulation of the small bowel due to lymph node adhesions and external compression by massively enlarged lymph nodes. A wide mesenteric resection was carried out incorporating all the large lymph nodes in the area of perforation. A primary anastomosis was performed between the ileum and the mid jejunum. Postsurgery, the patient remained mechanically ventilatedwith pressure support, but the family decided towithdraw all the supportivemeasures and the patient expired in 2 days. This rare radiological sign was first described by Wolfe and Evans in neonates secondary to necrotising enterocolitis. It is believed that air leaks through the obstructed gut into capillary veins due to perforation of ischaemic intestinal wall. The treatment and prognosis of portal venous gas depends on the underlying cause. In adults, it is mostly seen secondary to bowel ischaemia, hence requires emergency laparotomy and carries a high mortality. This sign is also reported in some benign conditions requiring only conservative management.
منابع مشابه
Budd-Chiari syndrome with portal, splenic, and superior mesenteric vein thrombosis treated with TIPS: who dares wins.
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عنوان ژورنال:
- BMJ case reports
دوره 2010 شماره
صفحات -
تاریخ انتشار 2010