Beyond the Splanchnic Area: Extra-splanchnic Thrombosis in Acute Pancreatitis.

Acute pancreatitis (AP) is an inflammatory condition with varied clinical presentations. Local complications include peripancreatic fluid collection, acute necrotic collection, walled-off necrosis, and pancreatic pseudocyst, but vascular complications like pseudoaneurysm and venous thrombosis are also reported. Patients often experience splanchnic venous thrombosis, which can affect the splenic vein, portal vein, and superior mesenteric vein individually or in combination. Rarely, extra-splanchnic venous thrombosis, including renal vein, superior vena cava, and inferior vena cava thrombosis, has been reported in cases of chronic pancreatitis. The formation of a venous thrombus in acute pancreatitis is multifaceted, with pancreatic inflammation and the immune response mounted by the patient playing a significant role. There is a dearth of medical literature regarding extra-splanchnic venous thrombosis and the use of therapeutic anticoagulation in the successful treatment of the above-mentioned complication. This case report highlights the rare complications that can be seen in cases of acute pancreatitis.

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Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work.