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Imaging features of undifferentiated pancreatic carcinoma with osteoclast-like giant cells / 中华胰腺病杂志
Chinese Journal of Pancreatology ; (6): 173-177, 2021.
Article in Chinese | WPRIM | ID: wpr-908793
ABSTRACT

Objective:

To investigate the imaging features of undifferentiated pancreatic carcinoma (UCOGCP) with osteoclast-like giant cells.

Methods:

CT and MRI data of 4 pathologically diagnosed UCOGCP patients admitted in the First Affiliated Hospital of Naval Medical University from December 2014 to January 2019 were retrospectively analyzed. The tumor location, major length, shape, border, density or signal, capsule, calcification, hemorrhage, cystic degeneration, degree of enhancement, as well as the presence or absence of pancreatic duct dilatation, pancreatic parenchymal atrophy, peripheral vascular invasion, lymph node and organ metastasis were recorded.

Results:

Of 4 UCOGCP patients, 1 case had the mass located in head of pancreas, 2 cases in body of pancreas , and 1 in tail of pancreas. The length of tumor ranged from 3.3 cm to 13.0 cm, and the average was 8.8 cm.3 cases were round-like, and 1 was irregular; 2 tumors were well defined with capsules, 2 with unclear border. 4 cases showed solid-cystic masses, 3 of which had cystic separation. 4 cases showed heterogeneous low density on unenhanced CT, and 1 case had spotted calcification. The solid component of the mass was mild enhanced on enhanced CT, and partial solid component of the mass showed obvious enhancement in 2 cases. 2 cases showed mixed low signal on T 1WI, 1 of which had small patchy high signal indicating hemorrhage. 2 cases showed mixed high signal on T 2WI, and high signal on DWI. 2 cases had major pancreatic duct dilation. 1 case had pancreatic parenchyma atrophy. 1 case had descending duodenum invasion. 3 cases had peripheral vascular invasion, including portal vein, splenic artery, and splenic vein. 1 case had tumor thrombosis in the portal vein and splenic vein. 1 case was associated with pancreatogenous portal hypertension.

Conclusions:

The imaging features of UCOGCP showed a large solid-cystic mass with hemorrhage and calcification. The solid component of the mass was mild enhanced and the partially solid component was obviously enhanced. The combination of its imaging characteristics and clinical data can improve the accuracy of diagnosis.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Pancreatology Year: 2021 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Pancreatology Year: 2021 Type: Article