CAP Cancer Protocol for invasive carcinoma of the breast (case summary). The case summary in the CAP Cancer Protocol for Invasive Carcinoma of the Breast9 is one of over 100 summaries that are maintained and updated by the CAP on a regular basis as science, medicine, and clinical practice evolve. Each protocol consists of a cover page, case summary, explanatory notes, and references. The case summary contains all elements that a pathologist needs to include in their pathology cancer report in order for it to be considered complete to help optimally direct patient care. The Cancer Protocols are freely accessible via the CAP website8. CAP, College of American Pathologists.