Khwaja, J., Kirkwood, A., Milani, P., Yohannan, B., Theodorakakou, F., Weverling, F., Simone, V. D., Kumar, S., Ravichandran, S., Mussinelli, R., Petropoulos, I., Cohen, O., Muchtar, E., Stamatelopoulos, K., Gillmore, J., Briasoulis, A., Gertz, M., Mahmood, S., Schwotzer, R., Minnema, M., Dispenzieri, A., Palladini, G., Kastritis, E., Wechalekar, A. (2025). A new validated staging system for AL amyloidosis with stage IIIc defining an ultra-poor prognostic in systemic AL amyloidosis in the modern treatment era. Blood. https://doi.org/10.1182/blood-2025-577