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

<div>Photomicrograph of the patient’s right axillary sentinel axillary lymph node with epithelial inclusion cyst and involvement of the inclusion cyst by cells of high nuclear grade ductal carcinoma (TRPS1 immunohistochemical stain, 200x).</div>

Case Reports in Pathology

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Figure 5

Figure 5: Ductal Carcinoma Arising in a Squamous Epithelial Inclusion Cyst within an Axillary Lymph Node: A Challenging Nodal Metastasis 