585P HER2 IHC status of primary breast cancer tumor and brain metastases in the BMBC registry. - Laakmann, E.; Denkert, C.; Schmidt, M.; Fehm, T.N.; Filmann, N.; Park-Simon, T-W.; Aydogdu, M.; Karn, T.; Karsten, M.M.; Jank, P.; Van Mackelenbergh, M.; Hesse, T.; et al. (Annals of Oncology, 2025)