Cavalleri, A., S. Mutti, A. Sicuranza, P. Pacelli, A. Leoni, C. Ielo, L. Paolini, V. Mangolini, T. Miracapillo, C. Turriziani, E. Abruzzese, M. Farina, A. Radeghieri, M. Malagola, M. Breccia, M. Bocchia, D. Russo, and S. Bernardi. 2026. “P026 | Tracking Residual Chronic Myeloid Leukemia: Complementary Insights from CD26⁺ Stem Cells and Extracellular BCR::ABL1: A. Cavalleri 1|2, S. Mutti 1|2, A. Sicuranza 3, P. Pacelli 3, A. Leoni 1|2, C. Ielo 4, L. Paolini 5, V. Mangolini 6|7, T. Miracapillo 3, C. Turriziani 3, E. Abruzzese 8, M. Farina 1, A. Radeghieri 6, M. Malagola 1, M. Breccia 4, M. Bocchia 3, D. Russo 1, S. Bernardi 1|2|9 | 1Department of Clinical and Experimental Sciences, Università Di Brescia - Unit of Blood Diseases and Bone Marrow Transplant, ASST Spedali Civili; 2Centro Di Ricerca Emato-Oncologica AIL, CREA, ASST Spedali Civili; 3University of Siena, Azienda Ospedaliera Universitaria; 4Umberto I Policlinico, La Sapienza University; 5Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, Università Di Brescia; 6Department of Molecular and Translational Medicine, Università Di Brescia; 7IRCCS Fondazione Don Carlo Gnocchi ONLUS; 8Hematology, S. Eugenio Hospital, ASLRoma2; 9National Center for Gene Therapy and Drugs Based on RNA Technology”. Haematologica 111 (s1). Pavia, Italy. https://doi.org/10.3324/haematol.2026.s1.97.