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Non-traumatic rupture of the superior mesenteric vein with hemoretroperitoneum
1Institute of Human Anatomy, University of Padova, Italy.
Abstract:
A case of rupture of the superior mesenteric vein with hemoretroperitoneum is described. The autopsy revealed the presence of an acute pancreatitis and thrombosis of the superior mesenteric artery. From the histological findings it appeared that the acute pancreatitis had damaged the venous wall from the outside and that the portal system overload, caused by the superior mesenteric artery thrombosis and the anomalous termination of the inferior mesenteric vein, acted from the inside of the vein causing its rupture. To our knowledge this is the first report of a rupture of the superior mesenteric vein caused by acute pancreatitis and resulting in hemoretroperitoneum.
Insights
This case study details a rare rupture of the superior mesenteric vein (SMV) leading to hemoretroperitoneum. Acute pancreatitis and SMV thrombosis were identified as contributing factors in this unique event.
Area of Science:
- Gastroenterology
- Vascular Surgery
- Pathology
Background:
- Superior mesenteric vein (SMV) rupture is a rare clinical event.
- Acute pancreatitis can lead to vascular complications.
- Hemaretroperitoneum signifies bleeding into the retroperitoneal space.
Observation:
- A case of SMV rupture with associated hemoretroperitoneum was investigated.
- Autopsy revealed acute pancreatitis and superior mesenteric artery (SMA) thrombosis.
- Histological examination provided insights into the rupture mechanism.
Findings:
- Acute pancreatitis caused external damage to the SMV wall.
- Portal system overload, due to SMA thrombosis and anomalous inferior mesenteric vein termination, compromised the vein internally.
- These combined factors led to the SMV rupture.
Implications:
- This is the first reported instance of SMV rupture caused by acute pancreatitis.
- Understanding this mechanism is crucial for diagnosing and managing rare vascular emergencies.
- Highlights the complex interplay between pancreatic inflammation and mesenteric vasculature.