Figure 1From: Primary lymphoma of the breast involving both axillae with bilateral breast carcinomaPhotomicrograph of histology specimen of an invasive ductal carcinoma shows that it extends irregularly through the tissue as cords and nests of neoplastic cells with intervening collagen. It has pleomorphic cells infiltrating through the stroma. Note the abundant pink collagen bands from desmoplasia, making the tumor feel firmer than normal breast tissue on palpation.Back to article page