Inflammatory Carcinoma of the Breast
Differential Diagnosis
- Infiltrating carcinoma with angio-lymphatic invasion
- Non-vascular dermal involvement by carcinoma
- Invasive micropapillary carcinoma
Infiltrating Carcinoma with Angio-lymphatic Invasion
- Inflammatory carcinoma requires dermal lymphatic involvement
- Peri-tumoral lymphatic involvement does not qualify
Non-vascular Dermal Involvement by Carcinoma
- Inflammatory carcinoma requires dermal lymphatic involvement
Invasive Micropapillary Carcinoma
- Inflammatory carcinoma requires dermal lymphatic involvement
- Micropapillary carcinoma is typically parenchymal but may extend to the dermis
- Spaces surrounding carcinoma clusters are not vascular
- (Micropapillary carcinoma in the dermis with lymphatic involvement would qualify)
