Case Report

Invasive Lobular Carcinoma of the Breast with Extracellular Mucin: Case Report of a New Variant of Lobular Carcinoma of the Breast

Figure 2

Invasive lobular carcinoma of the breast with extra cellular mucin shows the classic pattern of lobular carcinoma with single cell infiltration and discohesive pattern (top); groups of tumor cells are seen floating in a pool of extracellular mucin (bottom) (a: hematoxylin-eosin; original magnification ×20). Extracellular mucin lakes with clusters of tumor cells (b: hematoxylin-eosin; original magnification ×40). Areas of classic invasive lobular carcinoma showing typical single cell infiltration of the stroma and discohesive pattern (c: hematoxylin-eosin; original magnification ×40).
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