Text and Data Mining valid from 2018-06-01
Received: 6 August 2017
Revised: 10 April 2018
Accepted: 3 May 2018
First Online: 19 June 2018
Change Date: 31 July 2018
Change Type: Correction
Change Details: At the time of publication, the html version of this paper contained an error; the authors Imerio Angriman and Lucrezia Furian were not tagged as equally contributing authors. This has now been fixed in the html version of the paper, the PDF was correct at the time of publication.
Conflict of interest
: The authors declare that they have no conflict of interest.
: The patient provided written informed consent to have his data used for scientific purposes. Details have been removed from this case description to ensure anonymity. The editors and reviewers have seen the detailed information and are satisfied that the information supports the case the authors propose.