The image depicts double immunofluorescence localisation of full-length androgen receptor (AR, red) and an AR variant (ARv7, green) in a tissue section derived from an estrogen receptor-negative, progesterone receptor-negative, HER2-positive infiltrating breast carcinoma from a postmenopausal women. Most cells express detectable levels of ARv7 along with full-length AR. Credit: G Tarulli (University of Adelaide, Australia)