[Comparison study of small peripheral XXXX with computed tomographic and pathological findings].

@entity1 @entity1263 @entity548 @entity39 @entity5 @entity201 @entity1419
OBJECTIVE: To explore the computed tomographic (CT) and pathological findings of small @entity1419 and improve its understanding. METHODS: A total of 20 @entity1 with bile duct non-dilatation peripheral small @entity1419 were retrospectively analyzed. All of them were examined by plain and enhanced CT and pathological studies. RESULTS: CT plain scan:there were 15 cases of low-density lesions with fibers and @entity39 tissue and surviving @entity5 tissue in peripheral or central portions. There were 4 cases of lesions with mixed high and low densities. Abundant @entity39 tissues were found with a rare vascular distribution.Or abundant fibers and connective tissues around @entity5 were manifested as @entity201 .One lesion showed equal density with abundant @entity39 tissue and fibrous connective tissue with @entity1263 tissue; dynamic contrast-enhanced CT: (1) there were 6 cases of lesion with peripheral thin ring-enhanced and @entity5 margin of viable @entity5 tissue. And internal @entity5 was fibrous tissue; (2) there were 7 cases of lesions with peripheral thick ring-enhanced and enhanced portion was surviving @entity5 tissue, no enhanced central portion was mainly @entity39 tissue mixed with little fibrous tissue; (3) there were 2 cases of @entity5 without enhancement. There were significant @entity548 and @entity39 with few surviving @entity5 cells in @entity5 and normal liver tissue; (4) there were 5 cases of lesions with heterogeneous enhancement and the heterogeneous enhancement portion was surviving @entity5 tissue and little fibrous connective tissue. And some @entity39 tissue remained; (5) only one case had overall enhancement of same-sized @entity5 cells without @entity39 . CONCLUSION: CT scanning of peripheral small @entity201 lacks distinguishing characteristics. However the findings of contrast-enhanced CT have certain characteristics. Due to different pathological types, each attribute has corresponding characteristic with different pathological features.
