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SLL in Lymph Node : Signet Ring Cell Pattern

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LymphNode_SignetRingCellLymphoma3A.jpg

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SLL with Signet Ring Cell Pattern: Signet ring morphology can be better appreciated here. One must exclude mucinous adenocarcinoma with signet ring cell morphology. The immunohistochemical profile of the tumor cells was as follows: POSITIVE: LCA, CD20, CD5, IgM, and lambda light chains; NEGATIVE : CD3, kappa, S-100, HMB45, AE1/AE3, EMA, and CD68.

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