(a) All raters agreed that this is an inflammatory breast cancer (IBC) case; erythema (50%), edema (60%), and peau d'orange (80%) of the left breast, no tumor mass, duration of signs is 2 weeks. (b) All raters agreed this is an IBC case; erythema (60%), edema (80%), and peau d'orange (80%) of the right breast, no tumor mass, duration of signs is 1 month; (c). Study hospital considered this an IBC case; one U.S. rater agreed, the other did not; erythema (10%), edema (40%), peau d'orange (40%) of the left breast, duration of signs is 12 months. (d) Study hospital considered this an IBC case; both U.S. raters did not; erythema (60%), edema (100%), peau d'orange (100%) of the right breast, duration of signs 72 months. Percentages of the breast covered by redness, edema, and peau d'orange are based on the clinical examination form completed by the study hospital physicians.