What are the less common subtypes of ductal carcinoma in situ (DCIS)?

Updated: May 24, 2018
  • Author: Peter Abdelmessieh, DO, MSc; Chief Editor: Marie Catherine Lee, MD, FACS  more...
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Answer

Answer

DCIS is divided into comedo (ie, cribriform, micropapillary, solid) and noncomedo subtypes.This division provides additional prognostic information on the likelihood of progression or local recurrence (see the images below). Less common subtypes of DCIS are as follows:

  • "Clinging” carcinoma in situ [9]
  • Intraductal signet ring carcinoma
  • Cystic hypersecretory duct carcinoma
Breast cancer. Intraductal carcinoma, comedo type. Breast cancer. Intraductal carcinoma, comedo type. Distended duct with intact basement membrane and central tumor necrosis.
Breast cancer. Intraductal carcinoma, noncomedo ty Breast cancer. Intraductal carcinoma, noncomedo type. Distended duct with intact basement membrane, micropapillary, and early cribriform growth pattern

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