Spontaneous Cystogastrostomy: A Natural Response

Area of Science:

• Gastroenterology
• Radiology
• Surgical Gastroenterology

Background:

• Pancreatic pseudocysts are common sequelae of pancreatitis.
• While conservative management is often appropriate, complications like rupture and hemorrhage necessitate urgent intervention.
• Splenic vein thrombosis and splenic artery pseudoaneurysm are potential complications or contributing factors.

Observation:

• A male patient in his 30s presented with severe pancreatitis and a history of pancreatic pseudocyst and splenic vein thrombosis.
• Imaging revealed an enlarged pseudocyst with hemorrhage, suspected to be from a splenic artery pseudoaneurysm.
• Serial imaging demonstrated pseudocyst progression followed by spontaneous decompression into the stomach.

Findings:

• The pancreatic pseudocyst spontaneously resolved through the formation of a transgastric fistula, creating a natural cystogastrostomy.
• Endoscopy confirmed the presence of the cystogastrostomy, indicating a rare self-healing complication.
• The patient's management involved attempted embolization and observation, highlighting the unpredictable nature of pseudocyst evolution.

Implications:

• This case illustrates an uncommon but favorable outcome of a complicated pancreatic pseudocyst.
• Understanding spontaneous cystogastrostomy formation can inform management strategies for complex pancreatic pseudocysts.
• Further research into the mechanisms and predictors of spontaneous resolution is warranted for optimizing patient care.