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Papillary lesions of the breast are rare, accounting for less than 1 to 2 per cent of all breast cancers.1 They have an enormous spectrum from benign lesions to in situ and invasive carcinomas. General histologic features of these lesions are characterized by fibrovascular cores surrounded by neoplastic epithelial proliferation.2 The survival rate of this carcinoma is higher than that of other breast carcinomas.3 Tumors could be in situ, intracystic, or invasive. Here we present general clinicopathologic findings of 24 (1.23%) patients diagnosed with invasive papillary carcinoma out of 1941 breast cancer patients in our oncology center.
We had 14 patients with pure invasive papillary carcinoma (IPC), eight patients with IPC plus invasive ductal carcinoma (IDC), and two patients with IPC plus other...