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Prognostic Impact of Organomegaly in Mastocytosis: An Analysis of the European Competence Network on Mastocytosis

  • Johannes Lübke
  • , Juliana Schwaab
  • , Deborah Christen
  • , Hanneke Oude Elberink
  • , Bart Span
  • , Marek Niedoszytko
  • , Aleksandra Gorska
  • , Magdalena Lange
  • , Karoline V. Gleixner
  • , Emir Hadzijusufovic
  • , Oleksii Solomianyi
  • , Irena Angelova-Fischer
  • , Roberta Zanotti
  • , Massimiliano Bonifacio
  • , Patrizia Bonadonna
  • , Khalid Shoumariyeh
  • , Nikolas von Bubnoff
  • , Sabine Müller
  • , Cecelia Perkins
  • , Chiara Elena
  • Luca Malcovati, Hans Hagglund, Mattias Mattsson, Roberta Parente, Judit Varkonyi, Anna Belloni Fortina, Francesca Caroppo, Alexander Zink, Knut Brockow, Christine Breynaert, Dominique Bullens, Akif Selim Yavuz, Michael Doubek, Vito Sabato, Tanja Schug, Dietger Niederwieser, Karin Hartmann, Massimo Triggiani, Jason Gotlib, Olivier Hermine, Michel Arock, Hanneke C. Kluin-Nelemans, Jens Panse, Wolfgang R. Sperr, Peter Valent, Andreas Reiter, Mohamad Jawhar
  • Universitätsmedizin Mannheim
  • University Hospital
  • University Medical Center Groningen
  • Medical Unversity of Gdansk
  • Medical University of Vienna
  • University of Veterinary Medicine Vienna
  • Kepler Universitätsklinikum
  • Azienda Ospedaliera Universitaria Integrata Verona
  • University of Freiburg
  • German Cancer Research Center
  • Universitätsklinikum Schleswig-Holstein Campus Lübeck
  • Stanford University School of Medicine
  • Fondazione IRCCS Policlinico San Matteo
  • Uppsala University
  • University of Salerno
  • Semmelweis University
  • University of Padova
  • Technical University of Munich
  • KU Leuven
  • Cerrahpasa Medical School
  • Faculty of Medicine of Masaryk University Brno and University Hospital
  • University of Antwerp and Antwerp University Hospital
  • Abteilung für Psychiatrie
  • University Hospital Leipzig
  • University of Basel
  • University Hospital Basel
  • Hôpital Necker Enfants Malades
  • AP-HP
  • University Hospital Cologne

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Background: Organomegaly, including splenomegaly, hepatomegaly, and/or lymphadenopathy, are important diagnostic and prognostic features in patients with cutaneous mastocytosis (CM) or systemic mastocytosis (SM). Objectives: To investigate the prevalence and prognostic impact of 1 or more organomegalies on clinical course and survival in patients with CM/SM. Methods: Therefore, 3155 patients with CM (n = 1002 [32%]) or SM (n = 2153 [68%]) enrolled within the registry of the European Competence Network on Mastocytosis were analyzed. Results: Overall survival (OS) was adversely affected by the number of organomegalies (OS: #0 vs #1 hazard ratio [HR], 4.9; 95% CI, 3.4-7.1, P < .001; #1 vs #2 HR, 2.1, 95% CI, 1.4-3.1, P < .001; #2 vs #3 HR, 1.7, 95% CI, 1.2-2.5, P = .004). Lymphadenopathy was frequently detected in patients with smoldering SM (SSM, 18 of 60 [30%]) or advanced SM (AdvSM, 137 of 344 [40%]). Its presence confered an inferior outcome in patients with AdvSM compared with patients with AdvSM without lymphadenopathy (median OS, 3.8 vs 2.6 years; HR, 1.6; 95% CI, 1.2-2.2; P = .003). OS was not different between patients having organomegaly with either ISM or SSM (median, 25.5 years vs not reached; P = .435). At time of disease progression, a new occurrence of any organomegaly was observed in 17 of 40 (43%) patients with ISM, 4 of 10 (40%) patients with SSM, and 33 of 86 (38%) patients with AdvSM, respectively. Conclusions: Organomegalies including lymphadenopathy are often found in SSM and AdvSM. ISM with organomegaly has a similar course and prognosis compared with SSM. The number of organomegalies is adversely associated with OS. A new occurrence of organomegaly in all variants of SM may indicate disease progression.

Original languageEnglish
Pages (from-to)581-590.e5
JournalJournal of Allergy and Clinical Immunology: In Practice
Volume11
Issue number2
DOIs
StatePublished - Feb 2023

Keywords

  • Hepatomegaly
  • Lymphadenopathy
  • Mastocytosis
  • Organomegaly
  • Splenomegaly
  • Systemic mastocytosis

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