Primary Mesenteric Undifferentiated Pleomorphic Sarcoma Masquerading as a Colon Carcinoma: A Case Report and Review of the Literature

<div>Immunohistochemical analysis: The malignant cells show strong positivity to vimentin and focal patchy positivity to CD68, a nonspecific marker of fibrohistiocytic differentiation. S100 expression was negative.</div>

Case Reports in Oncological Medicine

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Figure 3: Primary Mesenteric Undifferentiated Pleomorphic Sarcoma Masquerading as a Colon Carcinoma: A Case Report and Review of the Literature 