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*Invasive papillary carcinoma of the breast | *Invasive papillary carcinoma of the breast | ||
**Similar architecture but no cystic space, frankly invasive. | **Similar architecture but no cystic space, frankly invasive. | ||
**Very rare. | |||
*Invasive carcinoma arising in association with papillary intracystic carcinoma | *Invasive carcinoma arising in association with papillary intracystic carcinoma | ||
**Epithelial entrapment in the encysting fibrous tissue should not be interpreted as invasion. | **Epithelial entrapment in the encysting fibrous tissue should not be interpreted as invasion. |
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