Acknowledgements
Ricerca Corrente 2019 to ED, Fondazione Venesio to CT.
Author contributions
ED and AMEM conceived the study, analyzed the data and wrote the paper, VA collected the data and wrote the paper, VT performed immunohistochemistry and molecular analyses, FG, SS, RP were involved in the clinical management of the patient, collected and analyzed the data, FG and CT critically revised the manuscript. All authors critically revised and approved the final version of the manuscript.
Disclosure statement
No potential conflict of interest was reported by the author(s).