Breast malignant, males, children
In situ carcinoma
Micropapillary DCIS

Author: Dina Kandil, M.D. (see Authors page)

Revised: 18 October 2016, last major update January 2012

Copyright: (c) 2002-2016,, Inc.

PubMed Search: Micropapillary DCIS

Cite this page: Micropapillary DCIS. website. Accessed October 22nd, 2016.
Gross Description
  • 25% of cases involve multiple quadrants of breast (multicentric)
Micro Description
  • Tufts of proliferating epithelial cells projecting into the ductal lumen, without fibrovascular cores, characteristic of true papillary lesions
  • These micropapillae are narrow at the base and have bulbous expansion at the tip resembling a club
  • Tips of epithelial tufts may fuse together, forming ìbridgesî and ìarcadesî
  • Cells are uniform and evenly distributed
  • Usually low grade DCIS without necrosis
  • Can be associated with flat epithelial atypia (Mod Pathol 2007;20:1149)
Micro Images

Images hosted on PathOut server:

Courtesy of Mark R. Wick, M.D.

Discontinuous fragments related to plane of sectioning

Micropapillae lack
fibrovascular cores,
cells are homogeneous

Images hosted on other servers:

No true fibrovascular cores

Roman bridges

Cytology Images

Images hosted on other servers:

Nipple discharge shows
high nuclear grade, Giemsa