Biliary adenofibromas are rare biliary epithelial tumors that are classified as benign. Nevertheless, some cases have been reported to show malignant transformations. The radiologic findings of biliary adenofibromas and their malignant transformation are not well-established because of their rarity. We present a case of a cholangiocarcinoma arising from a biliary adenofibroma assessed using ultrasonography, CT, and MRI. The differential diagnoses include other hepatic tumors.
Tumor thrombus in the portal vein without any liver parenchymal abnormality is extremely rare. In the liver, the primary tumor most frequently presenting with intravascular tumor thrombi is hepatocellular carcinoma and lymphoma is rarely considered. Even though thrombosis occurs quite often in lymphoma, cases of tumor thrombus are rare and cases of tumor thrombus in the portal vein are even rarer. Only four cases of lymphoma with portal vein tumor thrombosis have been reported to date and all cases were the result of direct extensions of a dominant nodal or extra-nodal mass. To our knowledge, there has been no report on diffuse large B-cell lymphoma (DLBCL) presenting only within the lumen of the portal vein and not intravascular B-cell lymphoma. We present the first case of DLBCL presenting only within the lumen of the portal vein in an immunocompetent patient.
췌장 선암의 발견, 진단, 절제 가능성 평가, 병기 설정 및 치료 방침 결정에 영상 검사는 중요한 역할을 담당하고 있다. 최근에는 진단 당시 경계절제성 혹은 국소 진행성 췌장암을 진단 받은 경우 선행 보조 치료 또는 완화 치료 후 가능하면 근치적 절제술을 고려할 것이 권고된다. 이 종설에서는 췌장 선암의 절제 가능성 평가, 원격 전이의 진단 및 선행 보조 치료 또는 완화 치료 후 절제 가능성을 재평가할 때 영상 검사의 해석, 판독 기준 및 고려할 사항에 대하여 설명하고자 한다.
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