“…Other clinical features included nausea, vomiting, hematemesis, tarry stools, abdominal dropsy, anemia, hemothorax, and posterior mediastinal hematoma. Among those cases, seven patients, accompanied by pancreatitis, had complicated symptoms, 3–7 one with Marfan syndrome 8 (there was another one with systemic connective tissue disease, undiagnosed), one with α‐1 antitrypsin deficiency, 9 one case of IgG4‐related multiple coronary aneurysms, 10 one with the tumor communicating with portal vein to form portal vein fistula 11 . Treatments employed included endovascular therapy ( n = 28, 59.6%), open surgical treatment ( n = 8, 17.0%), and laparoscopic surgery ( n = 2, 4.3%).…”