Ecthyma gangrenosum is the cutaneous manifestation of bacteremia traditionally associated with Pseudomonas Aeruginosa bacteremia. It classically presents as gunmetal grey bullae with a pink macular margin. To our knowledge, no case reports exist detailing the occurrence of ecthyma gangrenosum in a healthy young woman undergoing treatment for breast cancer. We present such a case to raise awareness of this entity in patients receiving chemotherapy.