Imaging diagnosis of solid psedopapillary tumor of pancreas
- VernacularTitle:胰腺实性-假乳头状瘤的影像学诊断
- Author:
Hui LI
;
Kang-Rong ZHOU
;
Meng-Su ZENG
;
Yuan JI
;
Ji-Zhang SHEN
;
Cai-Zhong CHEN
;
Li-Jun ZHANG
;
- Publication Type:Journal Article
- Keywords:
Pancreatic neoplasm;
Tomography,X-ray computed;
Magnetic resonance imaging
- From:
Chinese Journal of Radiology
2001;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To retrospectively analyze and conclude the characteristics of imaging appearances of solid psedopapillary tumor of pancreas.Methods Among 7 cases with pathologically proved solid psedopapillary tumor of pancreas,6 cases underwent CT examinations of upper abdomen preoperatively,and the rest One had MRI examination.The mean age of these 7 cases(all female)was 30.7 years(range,14—44 years).Results The tumors were usually quite large in the largest diameter ranged from 2.8 to 15.9cm(mean largest diameter,7.9 cm);Tumors were all well demarcated,and 5 of them were of capsule on CT or MR imaging.All tumors were well-encapsulated on pathologic specimens, except for the capsule of 1 tumor was partially invaded;In 6 cases underwent CT examination,scattered, punctate and linear calcification were noted in the capsule of 2 tumors and the rim of another one;Except for 1 tumor was almost solid,the other 6 tumors contained both solid and cystic components;Scattered sheets of high attenuation shown in the cystic or solid parts on CT imaging in several cases and the high signal intensity on T_1-weighted MR imaging signified the possibility of bleeding in tumors,which then was testified by pathologic evaluation.Conclusion The solid psedopapillary tumor of pancreas has comparatively characteristic clinical and imaging features.
