Acute myopericarditis as the initial manifestation of an adult-onset Still’s disease flare

Authors

DOI:

https://doi.org/10.32818/reccmi.a11n2a7

Keywords:

adult-onset Still’s disease, myopericarditis, hyperferritinemia, exanthema, procalcitonin

Abstract

Adult-onset Still’s disease (AOSD) is a rare systemic autoinflammatory disorder. We present the case of a 30-year old man who initially presented with acute myopericarditis with severe biventricular dysfunction, accompanied by a generalized elevation of proinflammatory markers, extreme hyperferritinemia, and an atypical skin rash. After infectious and autoimmune etiologies were ruled out, he was diagnosed with an AOSD flare and treatment with corticosteroids and immunomodulatory therapy was started, with prompt clinical improvement. This case is notable for its initial presentation, given the rarity of myocardial involvement as the first manifestation of the disease, and highlights the importance of correctly interpreting inflammatory markers within the patient’s clinical course and overall context.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

References

Bindoli S, Baggio C, Doria A, Sfriso P. Adult-onset Still’s disease (AOSD): advances in understanding pathophysiology, genetics and emerging treatment options. Drugs. 2024; 84: 257-274. doi: https://doi.org/10.1007/ s40265-024-01993-x (último acceso ago. 2026). DOI: https://doi.org/10.1007/s40265-024-01993-x

Yamaguchi M, Ohta A, Tsunematsu T, Kasukawa R, Mizushima Y, Kashiwagi H, et al. Preliminary criteria for classification of adult Still’s disease. J Rheu-matol. 1992; 19(3): 424-430.

Horna N M, Romero R, Larrauri C, Córdova F, Martín Mispireta J, Alarcón J. Miocardiopericarditis en la enfermedad de Still del adulto. Arch Peru Cardiol Cir Cardiovasc. 2023; 1(3): 194-97. doi: https://doi.org/10.47487/apcyccv. v1i3.65 (último acceso ago. 2026). DOI: https://doi.org/10.47487/apcyccv

Yıldırım R, Oğuzman S, Dinler M, Üsküdar Cansu D, Korkmaz C. Procalcitonin can increase during activation of adult-onset Still’s disease (AOSD) in the absence of an infection focus. Rheumatology. 2023;62(4): e109-e110. doi: https://doi.org/10.1093/rheumatology/keac511 (último acceso ago. 2026). DOI: https://doi.org/10.1093/rheumatology/keac511

Gerfaud-Valentin M, Maucort-Boulch D, Hot A, Iwaz J, Ninet J, Durieu I, et al. Adult-onset still disease manifestations, treatment, outcome, and prog-nostic factors in 57 patients. Medicine (Baltimore). 2014; 93(2): 91-99. doi: https://doi.org/10.1097/MD.0000000000000021 (último acceso ago. 2026). DOI: https://doi.org/10.1097/MD.0000000000000021

Ruscitti P, Di Cola I, Vitale A, Caggiano V, Palumbo P, Di Cesare E, et al. International AIDA Network and the Autoinflammatory Diseases Working Group of the Italian Society of Rheumatology. evaluation of myocarditis in patients with still disease: clinical findings from the Multicenter International AIDA Network Still Disease Registry. J Rheumatol. 2025; 52(3): 226-233. doi: https://doi.org/10.3899/jrheum.2024-0683 (último acceso ago. 2026). DOI: https://doi.org/10.3899/jrheum.2024-0683

Narváez J, Palacios-Olid J, García de Yebenes MJ, Holgado S, Olivé A, Casafont-Solé I, et al. Non-classical complications of adult-onset Still's disease: a multicenter spanish study. J Clin Med. 2025; 14(1): 285. doi: https://doi. org/10.3390/jcm14010285 (último acceso ago. 2026). DOI: https://doi.org/10.3390/jcm14010285

Published

2026-08-25

How to Cite

1.
Romeo Allepuz T, Mañas Lorente BM, Huertas Puyuelo AC, García-Domínguez C, Sampedro Calavia E, Royo Álvarez M. Acute myopericarditis as the initial manifestation of an adult-onset Still’s disease flare. Rev Esp Casos Clin Med Intern [Internet]. 2026 Aug. 25 [cited 2026 Aug. 31];11(2):64-7. Available from: https://www.reccmi.com/RECCMI/article/view/1317

Most read articles by the same author(s)