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Updated: Jan 31, 2026

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy
Published on: June 18, 2020
Hepatic portal venous gas related to appendicitis
Keita Kouzu1, Yoshiki Kajiwara1, Suefumi Aosasa1
1Department of Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Japan.
Background:
Hepatic portal venous gas (HPVG) is rare with high mortality. There are few reports on HPVG's association with appendicitis. Here we report a case of HPVG associated with appendicitis. Case presentation: A 79-year-old man presented with acute abdominal pain. Physical examination suggested peritoneal irritation. Blood tests indicated acute inflammation, metabolic acidosis, renal dysfunction and disseminated intravascular coagulation. Contrast-enhanced abdominal computed tomography revealed HPVG, a contrast defect in the small intestine, and minor ascites around the intestine. Urgent laparotomy was performed as intestinal ischemia was suspected. There were no findings of intestinal ischemia, but the appendix was discolored with wall thickening. We confirmed a clinical diagnosis of peritonitis caused by gangrenous appendicitis. We performed appendectomy and abdominal drainage. After surgery, the patient needed intensive care for septic shock. He left the ICU 7 days after the surgery and was discharged 10 days later. Conclusion: Thus, appendicitis may cause HPVG.
Insights
Hepatic portal venous gas (HPVG), a rare condition, can be caused by appendicitis. This case highlights the importance of considering appendicitis in patients presenting with HPVG and abdominal pain.
Area of Science:
- Gastroenterology
- Radiology
- Critical Care Medicine
Background:
- Hepatic portal venous gas (HPVG) is a rare radiological finding associated with high mortality.
- The association between HPVG and appendicitis is infrequently reported.
Observation:
- A 79-year-old male presented with acute abdominal pain, signs of peritoneal irritation, and laboratory evidence of inflammation, acidosis, and coagulopathy.
- Computed tomography revealed HPVG, a small intestinal contrast defect, and ascites, prompting suspicion of intestinal ischemia.
Findings:
- Laparotomy excluded intestinal ischemia but revealed a discolored, thickened appendix, confirming gangrenous appendicitis as the cause of peritonitis.
- The patient required intensive care for septic shock post-appendectomy but recovered and was discharged.
Implications:
- This case suggests that appendicitis can be an underlying cause of HPVG.
- Early recognition and surgical intervention for appendicitis are crucial in patients with HPVG.
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