PeccatoriNicolo&#39;. 2026. “CO51 | Pediatric PAX5-Rearranged Acute Lymphoblastic Leukemia Is a High-Risk Molecular Subgroup of B-ALL With a Poor MRD-Dependent Prognostic Profile: <a href="https://haematologica.org/search/search?query=N.+Peccatori">N. Peccatori</a>^1|2|3, <a href="https://haematologica.org/search/search?query=A.+Curto">A. Curto</a>^2|3, <a href="https://haematologica.org/search/search?query=D.+Silvestri">D. Silvestri</a>², <a href="https://haematologica.org/search/search?query=S.+Rebellato">S. Rebellato</a>², Ž. Antić^4/5, <a href="https://haematologica.org/search/search?query=S.+Bhatia">S. Bhatia</a>⁶, <a href="https://haematologica.org/search/search?query=A.+K.+Bergmann">A. K. Bergmann</a>^4|5, <a href="https://haematologica.org/search/search?query=A.+Borkhardt">A. Borkhardt</a>⁶, <a href="https://haematologica.org/search/search?query=M.+Zimmermann">M. Zimmermann</a>⁷, <a href="https://haematologica.org/search/search?query=S.+Strehl">S. Strehl</a>⁸, <a href="https://haematologica.org/search/search?query=K.+Nebral">K. Nebral</a>^8|9, <a href="https://haematologica.org/search/search?query=C.+Saitta">C. Saitta</a>¹, <a href="https://haematologica.org/search/search?query=M.+Quadri">M. Quadri</a>², <a href="https://haematologica.org/search/search?query=C.+Palmi">C. Palmi</a>², <a href="https://haematologica.org/search/search?query=M.+Bardini">M. Bardini</a>², <a href="https://haematologica.org/search/search?query=D.+Guardo">D. Guardo</a>¹⁰, <a href="https://haematologica.org/search/search?query=L.+Lo+Nigro">L. Lo Nigro</a>¹¹, <a href="https://haematologica.org/search/search?query=R.+Parasole">R. Parasole</a>¹², <a href="https://haematologica.org/search/search?query=M.C.+Putti">M.C. Putti</a>¹³, <a href="https://haematologica.org/search/search?query=F.+Locatelli">F. Locatelli</a>^14|15, <a href="https://haematologica.org/search/search?query=J.+Alten">J. Alten</a>¹⁶, <a href="https://haematologica.org/search/search?query=M.+Stanulla">M. Stanulla</a>⁷, <a href="https://haematologica.org/search/search?query=M.+G.+Valsecchi">M. G. Valsecchi</a>³, <a href="https://haematologica.org/search/search?query=B.+Buldini">B. Buldini</a>¹³, <a href="https://haematologica.org/search/search?query=V.+Conter">V. Conter</a>², <a href="https://haematologica.org/search/search?query=A.+Biondi">A. Biondi</a>^2|3, <a href="https://haematologica.org/search/search?query=A.+Balduzzi">A. Balduzzi</a>^1|3, <a href="https://haematologica.org/search/search?query=M.+Schrappe">M. Schrappe</a>¹⁶, <a href="https://haematologica.org/search/search?query=A.+Attarbaschi">A. Attarbaschi</a>^8|17, <a href="https://haematologica.org/search/search?query=G.+Cario">G. Cario</a>¹⁶, <a href="https://haematologica.org/search/search?query=C.+Rizzari">C. Rizzari</a>^1|3, <a href="https://haematologica.org/search/search?query=G.+Cazzaniga">G. Cazzaniga</a>^2|3, <a href="https://haematologica.org/search/search?query=G.+Fazio">G. Fazio</a>^2|3 | <i>¹Pediatrics, Fondazione IRCCS San Gerardo Dei Tintori; ²Tettamanti Center, Fondazione IRCCS San Gerardo Dei Tintori; ³School of Medicine and Surgery, University of Milano-Bicocca; ⁴Department of Human Genetics, Hannover Medical School; ⁵Clinical Genetics and Genomic Medicine, University Hospital Würzburg; ⁶Department for Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Heinrich-Heine University; ⁷Department of Paediatric Haematology and Oncology, Hannover Medical School; ⁸St. Anna Children’s Cancer Research Institute; ⁹Labdia Labordiagnostik; ¹⁰Unit of Hematology, IRCCS Istituto Giannina Gaslini; ¹¹Pediatric Hematology Oncology, Azienda Policlinico "G. Rodolico"; ¹²Dept. Oncology, Hematology and Cell Therapy, AORN, Santobono-Pausilipon; ¹³Istituto Di Ricerca Pediatrica-Città Della Speranza, Pediatric Onco-Hematology, Stem Cell Transplant and Gene Therapy Laboratory; ¹⁴Department of Pediatric Hematology and Oncology, IRCCS Ospedale Pediatrico Bambino Gesù; ¹⁵Department of Pediatrics, Catholic University of the Sacred Heart; ¹⁶University Medical Center Schleswig-Holstein- Campus Kiel, Department of Pediatrics- Berlin-Frankfurt-Münster ALL Study Group Germany BFM-G; ¹⁷Department of Pediatric Hematology and Oncology, St. Anna Children’s Hospital. .</I&gt;”. Haematologica 111 (s1). Pavia, Italy. https://doi.org/10.3324/haematol.2026.s1.54.