Fig. 2

Morphological features of ENKTL-Breast (hematoxylin and eosin statin). a Diffuse dense infiltration of lymphoid cells in mammary ducts and surrounding stroma, forming lymphoepithelial lesions (× 100 magnification). b Lymphoma cells infiltrated the lobules (× 200 magnification). c Tumor cells infiltrated the specialized breast stroma (× 400 magnification). d Angiocentric and angiodestructive growth patterns (× 200 magnification). e Patches of coagulative necrosis and apoptotic bodies are apparent (× 400 magnification). f Neoplastic cells involved subcutaneous fat lobules of the breast, partly with sparing of septa and rimed fat spaces (× 400 magnification). g Monomorphic large cells (× 400 magnification). h Pleomorphic tumor cells (× 400 magnification)