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  • Title: Colon invasive micropapillary carcinoma arising in tubulovillous adenoma.
    Author: Kondo T.
    Journal: Pol J Pathol; 2008; 59(3):183-5. PubMed ID: 19097358.
    Abstract:
    Invasive micropapillary carcinoma (IMPC) is defined as a carcinoma composed of small clusters of tumor cells lying within clear spaces which simulate lymphovascular channels. This histologic pattern has been described in various organs, including the breast, lung, urinary bladder, ovary, stomach, pancreas, and major salivary glands. Although rarely observed as a pure histologic component, IMPC is usually mixed with conventional carcinoma, and is therefore often referred to as carcinoma with a micropapillary component. IMPCs are invariably associated with a high degree of aggressiveness, extensive lymphovascular invasion, extensive lymph node metastases, and poor prognosis. I herein describe a case of primary IMPC originating in colon polyp as a minor histologic component.
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