What is the prognosis of atypical papilloma?

Updated: Jun 18, 2020
  • Author: Oudai Hassan, MD; Chief Editor: Chandandeep Nagi, MD  more...
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Several studies have indicated that atypical papillomas diagnosed with CNB require excision, as they may harbor DCIS in the papilloma and/or adjacent duct spaces. [9, 10, 11, 12]   [13, 14] The rate of finding DCIS (or invasive breast cancer in rare cases) on excision of an atypical papilloma ranges from 22% [4] to 75% [10] . This is higher than the rate of finding DCIS on excision of common benign IDP diagnosed in CNB (see Large, Central Intraductal Papillomas).

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