Abstract
An unusual case of pancreatic arteriovenous malformation (P-AVM) combined with esophageal cancer is reported. A 59-year-old man was admitted with upper abdominal pain. Contrast-enhanced computed tomography showed numerous strongly enhanced abnormal vessels and a hypovascular lesion in the area of the pancreatic tail. Angiographic study of the celiac artery confirmed racemose vascular networks in the tail of the pancreas. Endoscopic retrograde pancreatography revealed narrowing and displacement of the main pancreatic duct in the tail of the pancreas. Screening esophagoscopy showed a 0-IIa+IIc type tumor in the lower thoracic esophagus. Histological examination of esophagoscopic biopsies showed squamous cell carcinoma. Based on these findings, P-AVM or pancreatic cancer and esophageal cancer were diagnosed. Video-assisted thoracoscopic esophagectomy and distal pancreatectomy were performed. Histological examination of the resected pancreas revealed abundant abnormal vessels with intravascular thrombi. In addition, rupture of a dilated pancreatic duct with pancreatic stones and both severe atrophy and fibrosis of the pancreatic parenchyma were observed. The final diagnoses were P-AVM consequent to severe chronic pancreatitis and esophageal carcinoma. The patient's postoperative course was relatively good.
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