科研之友
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摘要
this paper reports a rare malignant lymphoma with histological spindle-cell pattern. seventy four year-old man presented with lung tumor. a diagnostic of spindle-cell malignant neoplasia was made and immunohistochemical studies were suggestive of inflammatory pseudotumor. three months later, the patient returned to our service with acute abdomen. the surgery showed small intestinal perforation associated with tumor. microscopic examination and immunohistochemical studies revealed diffuse b-large cell lymphoma. after the diagnostic of the intestinal tumor, the lung tumor was reviewed, showing positivity for cd45 and cd20 antibodies. this result supports the diagnostic of spindle b-cell lymphoma, in the lung tumor. the aim of this report is to alert pathologists about this rare spindle cell pattern presentation of lymphomas, that must be differentiated from true sarcomas and others spindle-cell neoplasias.
