1 Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Loschgestraße 15, 91054, Erlangen, Germany. tobias.krickau@uk-erlangen.de.
2 Centre for Rare Diseases Erlangen (ZSEER), Erlangen, Germany. tobias.krickau@uk-erlangen.de.
3 DZI (Deutsches Zentrum für Immuntherapie), Erlangen, Germany. tobias.krickau@uk-erlangen.de.
4 Department of Nuclear Medicine, University Hospital Erlangen, Erlangen, Germany.
5 Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Loschgestraße 15, 91054, Erlangen, Germany.
6 Centre for Rare Diseases Erlangen (ZSEER), Erlangen, Germany.
7 DZI (Deutsches Zentrum für Immuntherapie), Erlangen, Germany.
8 Department of Rheumatology and Immunology, University Hospital Erlangen, Erlangen, Germany.
9 Department of Radiology, University Hospital Erlangen, Erlangen, Germany.