Ductal Carcinoma Arising in a Squamous Epithelial Inclusion Cyst within an Axillary Lymph Node: A Challenging Nodal Metastasis

Figure 1

Photomicrograph from right mastectomy confirming ductal carcinoma in situ, high-grade, clinging, and cribriform patterns (hematoxylin and eosin (H&E) stain, 200x).