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Σάββατο 6 Ιανουαρίου 2018

Differentiating Breast Carcinoma with Signet-Ring Features from Gastrointestinal Signet-Ring Carcinoma: Assessment of Immunohistochemical Markers

Signet-ring morphology is recognized throughout the gastrointestinal tract. However, this pattern may be observed in other primary sites giving rise to diagnostic challenges in the work-up of metastases. Relatively newer immunohistochemical markers have not been evaluated in this context. We assessed expression patterns of several common immunohistochemical markers in tumors with signet-ring morphology to delineate a pragmatic approach to this differential diagnosis. Primary breast and gastrointestinal carcinomas showing signet-ring features were reviewed.

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