Case of the month - May 2007
History:
- 80 year old female - diffuse thickening upper outer quadrant left breast. No discrete mass. Clinically suspicious. R3, U2
Low power view (x 1.25) of core biopsy

Low power view showing a duct in longitudinal section with fibrosis and chronic inflammation filling the duct lumen.
'Mouse over' for medium power view

High power view showing a duct in cross section with mature granulation tissue filling the duct lumen

- What are the main features in this biopsy
- Are there any additional studies that might help you?
- What is your diagnosis?