PMC7234329_01
Presumed infiltrative BCC tumor aggregates in the lymphatic vessels of the superficial dermis (hematoxylin and eosin, original magnification, 10x).
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Stage 2 pathology slide evaluation revealed probable tumor aggregates of infiltrative BCC in the lymphatic vessels of the superficial dermis (Figure 1).
Immunohistochemical stains performed on the specimen did not reveal an endothelial cell lining compatible with lymphatic invasion revealing BCC stroma as a mimicker of lymphatic invasion (D2-40, original magnification, 20x).
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Further histologic review and D2-40 immunohistochemical stains performed on the paraffin-embedded sections did not reveal an endothelial cell lining in favor of lymphatic invasion (Figure 2).