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Abstract Number: 2725

Clinical Factors Distinguishing Between Pediatric Tumors with Arthritis at Onset and JIA: Preliminary Analysis of the ONCOREUM Study

Adele Civino1, Gianni Alighieri 2, Roberto Rondelli 3, Silvia Magni-Manzoni 4, Micol Romano 5, Giovanni Filocamo 6, Francesca Santarelli 7, Francesca Ricci 8, Alma Nunzia Olivieri 9, Serena Pastore 10, Patrizia Barone 11, Romina Gallizzi 12, Angela Miniaci 13, Manuela Marsili 14, Rosanna Podda 15, Bianca Lattanzi 16, Maria Cristina Maggio 17, Rita Consolini 18, Francesco La Torre 19, Maria Antonietta Pelagatti 20, Francesca Soscia 21, Alessandro De Fanti 22, Donato Rigante 23, Eleonora Prete 24, Giulia Stabile 25, Andrea Roncadori 26, Loredana Lepore 27, Valentino Conter 28, Andrea Pession 29 and Angelo Ravelli 30, 1Pediatric Rheumatology “Vito Fazzi” Hospital, Lecce, Lecce, Italy, 2Pediatric Unit “Card. G. Panico” Hospital, Tricase, Tricase, Italy, 3Department of Pediatrics, "Lalla Seragnoli" , Hematology - Oncology Unit , University of Bologna, Bologna, 4Rheumatology, Bambino Gesù Children's Hospital, IRCCS, Rome, Roma, 5Division of Rheumatology, ASST Gaetano Pini, Milan, Milano, 6Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Milano, Italy, 7Pediatric Immunology and Rheumatology, "Regina Margherita" Children Hospital, University of Turin, Torino, Italy, 8Pediatric Clinic, Asst Spedali Civili, University of Brescia, Brescia, Italy, 9Pediatric Rheumatology, Second University of Studies of Naples, Napoli, Italy, 10Pediatric Rheumatology, IRCCS Burlo Garofolo, Trieste, Italy;, Trieste, Italy, 11Department of Pediatrics, University of Catania, Catania, Italy, Catania, Italy, 12Azienda Ospedaliera Universitaria Gaetano Martino, Messina, Messina, Italy, 13Department of Pediatrics, "Lalla Seragnoli" , Rheumatology , University of Bologna, Bologna, Italy, 14Pediatric Rheumatology, University of Chieti, Chieti, Italy, 15Paediatric Rheumatology, Ospedale Pediatrico Microcitemico A. Cao, Cagliari, Cagliari, Italy, 16Pediatric Rheumatology, Ospedali Riuniti di Ancona, Ancona, Italy, 17Department of Health Promotion Sciences Maternal and Infantile Care, “G. D’Alessandro”, University of Palermo, Palermo, Italy, 18Department of clinical and experimental Medicine University of Pisa, Pisa, Italy, 19Rheumatology Section. Pediatric Unit. Giovanni XXIII Pediatric Hospital. Bari, Bari, Italy, 20Paediatric Rheumatology, MBBM Foundation, San Gerardo Hospital Monza, Monza, Italy, 21Pediatric Unit Santa Maria della Stella Hospital, Orvieto, Orvieto, Italy, 22Pediatric and Adolescent Rheumatology Unit Azienda USL-IRCCS, Reggio Emilia, Reggio Emilia, Italy, 23Institute of Pediatrics, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy, Roma, Italy, 24Department of Hematology and Bone Marrow Trasplant Card. G. Panico” Hospital, Tricase, Tricase, Italy, 25Inter-University Consortium Cineca, Casalecchio di Reno (BO), Casalecchio di Reno, 26Inter-University Consortium Cineca, Casalecchio di Reno (BO), Casalecchio di Reno, Italy, 27Pediatric Rheumatology, IRCCS Burlo Garofolo, Trieste, Trieste, Italy, 28Paediatric Haemato-Oncology, University of Milano-Bicocca, MBBM Foundation, Monza, Monza, Italy, 29Department of Pediatrics, "Lalla Seragnoli" , Hematology - Oncology Unit , University of Bologna, Bologna, Italy, 30Pediatric Rheumatology, IRCCS Giannina Gaslini Institute Genova, Genova, Italy

Meeting: 2019 ACR/ARP Annual Meeting

Keywords: athritis, tumor and differential diagnosis

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Session Information

Date: Tuesday, November 12, 2019

Title: Pediatric Rheumatology – ePoster III: Systemic JIA, Fever, & Vasculitis

Session Type: Poster Session (Tuesday)

Session Time: 9:00AM-11:00AM

Background/Purpose: Musculoskeletal (MSK) symptoms are a common presenting complaint in pediatric primary care (estimated prevalence 25-50%) and may be the initial manifestation of cancer in rare cases. An articular involvement has been observed in about 20% of onset leukemias, with pictures that can mimic juvenile idiopathic arthritis (JIA) leading to inappropriate steroid or immunosuppressive therapy and diagnostic delay. The primary objective of this study is to assess the prevalence and features of MSK symptoms at the onset of pediatric tumors. The secondary objective is to identify predictors of malignancy comparing tumors with MSK symptoms at onset and new cases of JIA diagnosed in the same period

Methods: The ONCOREUM is a multicenter, observational, cross-sectional study conducted between 2015 and 2018 by 25 Centers of the Italian Association of Pediatric Hematology and Oncology (AIEOP) and 22 Rheumatological Centers of the Italian Society of Pediatrics (SIP).  A web based data collection within the AIEOP platform managed by CINECA was performed after local ethics committees approval and written informed consent. We analyzed clinical and laboratory data of patients (pts) < 16 years of age with new diagnosis of tumors or JIA. The data were compare dusing χ² for categorical variables and t-test, Welch’s test, or Mann-Whitney U test for continuous variables. Statistical analysis was performed by the open source statistical software R.

Results: We considered eligible 1928 pts: 655 of them were affected by JIA and 1273 by tumor. MSK symptoms at onset were found in 25% of cases of tumors, articular involvement (arthritis and/or arthralgia) in 16% and arthritis in 8% (Fig. 1). An initial rheumatological diagnosis was suspected in 9% (29/322) of tumors with MSK symptoms and in 17% (17/102) of tumors with arthritis at onset. The highest frequency of initial rheumatic suspicion was found in neuroblastoma (5/21), Langerhans histiocytosis (3/16) and leukemia (17/188). The most frequent misdiagnosis were hip synovitis, JIA and reactive arthritis. In this preliminary analysis, we compared the clinical features of pts with tumors and arthritis at onset (102) and pts with JIA (655). We found a difference in the frequency of involvement of specific joints: hip and shoulder were significantly associated with tumors; knee, ankle, wrist and small joints of the hands with JIA (Fig 2). We also found that: monoarthritis, arthralgia, bone pain, back pain, disproportionate pain, night pain, refusal to walk, systemic symptoms and male sex were significantly associated with tumors, while poliarthritis ( > 4 joints), joint swelling and morning stiffness with JIA (Tab.1)

Conclusion: MSK symptoms at onset of pediatric tumors were observed in 25% of pts, with joint involvement in more than half of cases. Comparing pts with tumors and arthritis with JIA, we found that some clinical feature are useful in differential diagnosis. It is important to carefully evaluate involvement of specific joint at onset (hip and shoulder), monoarticular involvement, specific characteristic of pain, sex and presence of systemic symptoms since these factors have been shown to be significantly associated with oncologic diagnosis.


Disclosure: A. Civino, None; G. Alighieri, None; R. Rondelli, None; S. Magni-Manzoni, None; M. Romano, None; G. Filocamo, None; F. Santarelli, None; F. Ricci, None; A. Olivieri, None; S. Pastore, None; P. Barone, None; R. Gallizzi, None; A. Miniaci, None; M. Marsili, None; R. Podda, None; B. Lattanzi, None; M. Maggio, None; R. Consolini, None; F. La Torre, None; M. Pelagatti, None; F. Soscia, None; A. De Fanti, None; D. Rigante, None; E. Prete, None; G. Stabile, None; A. Roncadori, None; L. Lepore, None; V. Conter, None; A. Pession, None; A. Ravelli, None.

To cite this abstract in AMA style:

Civino A, Alighieri G, Rondelli R, Magni-Manzoni S, Romano M, Filocamo G, Santarelli F, Ricci F, Olivieri A, Pastore S, Barone P, Gallizzi R, Miniaci A, Marsili M, Podda R, Lattanzi B, Maggio M, Consolini R, La Torre F, Pelagatti M, Soscia F, De Fanti A, Rigante D, Prete E, Stabile G, Roncadori A, Lepore L, Conter V, Pession A, Ravelli A. Clinical Factors Distinguishing Between Pediatric Tumors with Arthritis at Onset and JIA: Preliminary Analysis of the ONCOREUM Study [abstract]. Arthritis Rheumatol. 2019; 71 (suppl 10). https://acrabstracts.org/abstract/clinical-factors-distinguishing-between-pediatric-tumors-with-arthritis-at-onset-and-jia-preliminary-analysis-of-the-oncoreum-study/. Accessed .
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