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- Title
Rhabdomyosarcoma Associated with Core Myopathy/Malignant Hyperthermia: Combined Effect of Germline Variants in RYR1 and ASPSCR1 May Play a Role.
- Authors
Andrade, Pamela V.; Santos, Joilson M.; Teixeira, Anne C. B.; Sogari, Vanessa F.; Almeida, Michelle S.; Callegari, Fabiano M.; Krepischi, Ana C. V.; Oliveira, Acary S. B.; Vainzof, Mariz; Silva, Helga C. A.
- Abstract
Rhabdomyosarcomas have been described in association with thyroid disease, dermatomyositis, Duchenne muscular dystrophy, and in muscular dystrophy models but not in patients with ryanodine receptor-1 gene (RYR1) pathogenic variants. We described here an 18-year-old male who reported a cervical nodule. Magnetic resonance images revealed a mass in the ethmoidal sinus corresponding to rhabdomyosarcoma. As his father died from malignant hyperthermia (MH), an in vitro contracture test was conducted and was positive for MH susceptibility. Muscle histopathological analysis in the biopsy showed the presence of cores. Molecular analysis using NGS sequencing identified germline variants in the RYR1 and ASPSCR1 (alveolar soft part sarcoma) genes. This report expands the spectrum of diseases associated with rhabdomyosarcomas and a possible differential diagnosis of soft tissue tumors in patients with RYR1 variants.
- Subjects
MALIGNANT hyperthermia; DERMATOMYOSITIS; SOFT tissue tumors; DUCHENNE muscular dystrophy; RHABDOMYOSARCOMA; GERM cells
- Publication
Genes, 2023, Vol 14, Issue 7, p1360
- ISSN
2073-4425
- Publication type
Case Study
- DOI
10.3390/genes14071360