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Journal of Shanghai Jiaotong University(Medical Science) ; (6)2006.
Article in Chinese | WPRIM | ID: wpr-640686

ABSTRACT

Objective To investigate the clinicopathologic features,diagnosis,differential diagnosis and treatment of sclerosing angiomatoid nodular transformation(SANT). Methods The clinical data,pathologic characteristics,immunophenotype and postoperative follow-up of SANT were analysed. Results There were no specific findings in the clinical manifestations of the 4 cases of SANT.Grossly,the cut surface of the masses was gray-white and vague nodularity was observed.Microscopically,it was characterized by the multinodular angiomatoid appearance in a fibrosclerotic stroma.The nodules were composed of slit-like,sinusoid-like vascular spaces and were interspersed with a population of spindly or ovoid cells.It was revealed by immunohistochemistry that the expression of CD34 in some vessels' endothelial cells was positive,and CD8 was negative.While in another vessels' endothelial cells,CD8 was positive and CD34 was negative.The expression of SMA,Actin,Vimentin,Collage IV and CD68 was positive in all of the 4 cases,while that of CD21,Desmin and NSE was negative.No relapse or metastasis was found during the follow-up.Conclusion SANT is a rarely encountered benign lesion of the spleen,which should be distinguished from the malignant tumor of the spleen.The diagnosis counts on the pathologic and immunohistochemical findings.It could be cured by splenectomy with a favourable prognosis.

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