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Scoring the risk of having systemic mastocytosis in adult patients with mastocytosis in the skin

Background - Mastocytosis in adults often presents with skin lesions. A bone marrow biopsy is necessary to confirm or exclude the presence of systemic mastocytosis (SM) in these cases. When a bone marrow biopsy is not performed, the provisional diagnosis is mastocytosis in the skin (MIS). No general...

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Main Authors: Fuchs, David (Author) , Kilbertus, Alex (Author) , Kofler, Karin (Author) , von Bubnoff, Nikolas (Author) , Shoumariyeh, Khalid (Author) , Zanotti, Roberta (Author) , Bonadonna, Patrizia (Author) , Scaffidi, Luigi (Author) , Doubek, Michael (Author) , Elberink, Hanneke Oude (Author) , Span, Lambert F. R. (Author) , Hermine, Olivier (Author) , Elena, Chiara (Author) , Benvenuti, Pietro (Author) , Yavuz, Akif Selim (Author) , Brockow, Knut (Author) , Zink, Alexander (Author) , Aberer, Elisabeth (Author) , Gorska, Aleksandra (Author) , Romantowski, Jan (Author) , Hadzijusufovic, Emir (Author) , Fortina, Anna Belloni (Author) , Caroppo, Francesca (Author) , Perkins, Cecelia (Author) , Illerhaus, Anja (Author) , Panse, Jens (Author) , Vučinić, Vladan (Author) , Jawhar, Mohamad (Author) , Sabato, Vito (Author) , Triggiani, Massimo (Author) , Parente, Roberta (Author) , Bergström, Anna (Author) , Breynaert, Christine (Author) , Gotlib, Jason (Author) , Reiter, Andreas (Author) , Hartmann, Karin (Author) , Niedoszytko, Marek (Author) , Arock, Michel (Author) , Kluin-Nelemans, Hanneke C. (Author) , Sperr, Wolfgang R. (Author) , Greul, Rosemarie (Author) , Valent, Peter (Author)
Format: Article (Journal)
Language:English
Published: April 2021
In: The journal of allergy and clinical immunology. In practice
Year: 2021, Volume: 9, Issue: 4, Pages: 1705-1712.e4
ISSN:2213-2201
DOI:10.1016/j.jaip.2020.12.022
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.jaip.2020.12.022
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S2213219820313544
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Author Notes:David Fuchs, Alex Kilbertus, Karin Kofler, Nikolas von Bubnoff, Khalid Shoumariyeh, Roberta Zanotti, Patrizia Bonadonna, Luigi Scaffidi, Michael Doubek, Hanneke Oude Elberink, Lambert F. R. Span, Olivier Hermine, Chiara Elena, Pietro Benvenuti, Akif Selim Yavuz, Knut Brockow, Alexander Zink, Elisabeth Aberer, Aleksandra Gorska, Jan Romantowski, Emir Hadzijusufovic, Anna Belloni Fortina, Francesca Caroppo, Cecelia Perkins, Anja Illerhaus, Jens Panse, Vladan Vucinic, Mohamad Jawhar, Vito Sabato, Massimo Triggiani, Roberta Parente, Anna Bergström, Christine Breynaert, Jason Gotlib, Andreas Reiter, Karin Hartmann, Marek Niedoszytko, Michel Arock, Hanneke C. Kluin-Nelemans, Wolfgang R. Sperr, Rosemarie Greul, Peter Valent
Description
Summary:Background - Mastocytosis in adults often presents with skin lesions. A bone marrow biopsy is necessary to confirm or exclude the presence of systemic mastocytosis (SM) in these cases. When a bone marrow biopsy is not performed, the provisional diagnosis is mastocytosis in the skin (MIS). No generally accepted scoring system has been established to estimate the risk of SM in these patients. - Objective - To develop a risk score to predict SM in adults with MIS. - Methods - We examined 1145 patients with MIS from the European Competence Network on Mastocytosis Registry who underwent a bone marrow biopsy. A total of 944 patients had SM and 201 patients had cutaneous mastocytosis; 63.7% were female, and 36.3% were male. Median age was 44 ± 13.3 years. The median serum tryptase level amounted to 29.3 ± 81.9 ng/mL. We established a multivariate regression model using the whole population of patients as a training and validation set (bootstrapping). A risk score was developed and validated with receiver-operating curves. - Results - In the multivariate model, the tryptase level (P < .001), constitutional/cardiovascular symptoms (P = .014), and bone symptoms/osteoporosis (P < .001) were independent predictors of SM (P < .001; sensitivity, 90.7%; specificity, 69.1%). A 6-point risk score was established (risk, 10.7%-98.0%) and validated. - Conclusions - Using a large data set of the European Competence Network on Mastocytosis Registry, we created a risk score to predict the presence of SM in patients with MIS. Although the score will need further validation in independent cohorts, our score seems to discriminate safely between patients with SM and with pure cutaneous mastocytosis.
Item Description:Gesehen am 14.07.2021
Physical Description:Online Resource
ISSN:2213-2201
DOI:10.1016/j.jaip.2020.12.022

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