We present an encapsulated papillary breast carcinoma in a male patient, in association with microdeposits of carcinoma cells within the needle track, in the lymphatic spaces of the breast parenchyma and subcapsular sinus of two sentinel lymph nodes in which conservative treatment has been recommended. Both in females and males, papillary tumours and particularly encapsulated papillary breast carcinoma can be associated with microdeposits mechanically displaced, which have to be differentiated from true invasion and metastases and treated conservatively.
We present a very rare case of an adenosquamous infiltrating breast carcinoma with sarcomatous stromal overgrowth of hypocellular collagenised type, which subsequently developed local recurrence, mistaken for a benign skin lesion due to bland keloid-like morphological appearance. All the histological, immunohistochemical, and clinical features must be taken into consideration when distinguishing between a benign skin lesion and a local recurrence of a rare subtype of breast carcinoma.
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