Part B courtesy of Nasreen A. Syed, MD.
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Ocular Pathology/Oncology
Basal cell carcinoma, nodular type. A, Clinical appearance with elevated, rolled edges and central ulceration. B, Histologic appearance. Note the characteristic palisading of the cells around the outer edges of the tumor islands (arrows) and the artifactitious separation (due to tissue processing) between the nests of tumor cells and the dermis (retraction artifact, arrowheads).