Case of an Intracystic (Encysted) Papillary Carcinoma of the Breast

ABSTRACT

Intracystic (encysted) papillary carcinoma of the breast (IPC) is a rare tumor with predilection for elderly postmenopausal women and has distinctive pathological features that should be distinguished from those of ductal carcinoma in situ (DCIS) of the papillary type and invasive papillary carcinoma. IPC can appear in a pure form or can be associated with DCIS or invasive carcinoma. It is usually a low-grade carcinoma with overall good prognosis, presenting low or intermediate nuclear grade, no necrosis, high positivity to estrogen receptors, and the negativity for c-erbB-2. We report here a case of IPC managed by lumpectomy with ipsilateral axillary lymph node dissection