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Answer: Benign Portal Venous Gas
Portal venous gas (PVG) has historically been associated with acute abdominal catastrophe and high mortality rates. Noted radiographically first in neonates1and later in adults,2PVG has portended a uniformly fatal prognosis. Most commonly found with pneumatosis intestinalis, PVG has indicated the late stages of mesenteric ischemia and has traditionally mandated immediate operative exploration.3With recent advances in radiological techniques and the ubiquity of CT scans, PVG has been associated with other types of abdominal pathological findings including bowel obstruction, inflammatory bowel disease, and pancreatitis; intra-abdominal infections such as diverticulitis, cholangitis, and portal pyelophlebitis; and various invasive endoscopic and intravascular procedures such as esophagogastroduodenoscopy, endoscopic retrograde cholangiopancreatography, colonoscopy, CT-guided abscess drainage, and visceral artery embolizations.4Owing to lower mortality rates, PVG has been managed nonoperatively with greater success, calling into question mandatory surgery.5The recent decrease in mortality rates may be due to the greater sensitivity of CT scans when compared with plain radiographs in diagnosing PVG and thus earlier diagnosis before fulminant disease has occurred.4Careful evaluation of the clinical situation and other associated CT findings can help elucidate which patients may benefit from surgery and which patients will be best managed nonoperatively. This patient was treated conservatively with judicious fluid resuscitation and nasogastric suctioning. Her bowel obstruction resolved and she was eventually discharged to home.
In conclusion, PVG has traditionally been associated with acute abdominal catastrophe and high mortality, mandating immediate exploratory laparotomy. Today, the increased sensitivity of contemporary radiologic modalities has considerably expanded the differential diagnosis of PVG. Since PVG can be identified in numerous clinical conditions that do not necessarily require immediate surgical intervention, a careful reassessment of historical treatment algorithms is in order. Optimal management of PVG therefore may not necessarily warrant surgery.
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Correspondence:Daniel Kaufman, MD, Department of Plastic and Reconstructive Surgery, Montefiore Medical Center, Albert Einstein School of Medicine, 3353 Bainbridge Ave, Bronx, NY 10467 (firstname.lastname@example.org).
Accepted for Publication:January 5, 2007.
Financial Disclosure:None reported.
Author Contributions:Study concept and design: Kaufman and Schwartzman. Acquisition of data: Kaufman and Kang. Analysis and interpretation of data: Kaufman and Kang. Drafting of the manuscript: Kaufman and Kang. Critical revision of the manuscript for important intellectual content: Kaufman and Schwartzman. Obtained funding: Kaufman. Administrative, technical, and material support: Kaufman and Kang. Study supervision: Kaufman and Schwartzman.
Image of the Month—Diagnosis. Arch Surg. 2008;143(8):804. doi:10.1001/archsurg.143.8.804