Ultrasound and CT findings in children pancreatoblastoma
10.3760/cma.j.issn.1005?1201.2018.09.009
- VernacularTitle:儿童胰母细胞瘤的B超与CT表现分析
- Author:
Mei YANG
1
;
Xinyu YUAN
;
Xuefeng SUN
;
Yingzi SU
;
Long LI
;
Ran TAO
Author Information
1. 100020,首都儿科研究所附属儿童医院放射科
- Keywords:
Pancreatic neoplasms;
Ultrasonography;
Tomography;
X-ray computed;
Child
- From:
Chinese Journal of Radiology
2018;52(9):692-695
- CountryChina
- Language:Chinese
-
Abstract:
Objective To improve the imaging diagnostic performance by analyzing US and CT findings of pancreatoblastoma in children. Methods From January 2000 to December 2016, 9 patients with pancreatoblastoma proven pathologically were enrolled in the study. The clinical and imaging features in 9 cases were analyzed retrospectively, the tumor parameters compared with intraoperative and postoperative pathology were location, size, texture, capsule, calcification, adjacent organs invasion and lymph node metastasis. The parameter of tumor size was evaluated by intraclass correlation coefficient. Results The tumor diameter ranged from 30-95 mm (median diameter 40 mm). Six tumors located in the head of the pancreas, 3 tumors located in the body and tail of the pancreas. One tumor was pure cystic, 2 tumors were solid and cystic mixed, 5 tumors were solid. Calcification was seen in 5 cases. Capsule was seen in 5 cases. Blood vessels, biliary tract and bowel around tumors were infiltrated by tumors in 3 cases proven by the pathology. Lymphadenectasis was seen in 2 cases, in which 1 case was metastasis. There were no significant differences in location, nature, calcification on US and CT. The largest diameter measured by CT and US was consistent with the tumor''s actual size, ICC=0.90.Capsule was shown by US in 5 cases and CT in 3 cases. CT showed the morphology of calcification in 5 cases, lymphadenectasis in 2 cases, abdominal effusion in 2 cases, cavernous transformation of the portal vein with the extensive collaterals in 1 case, which were not shown by US. Both US and CT dit not show the surrounding tissue infiltrated by tumors in 3 cases,but showed biliary system expansion. Conclusions The typical pancreatoblastoma manifested as encapsulated solid tumor originated in the pancreas with necrosis and calcification. US examination took a slight advantage on displaying capsule of tumor than CT. CT was more clear and intuitive in showing calcification and relationship between tumor with surrounding tissues and lymph node, and no operator dependent.