A case of a metastatic SDHA mutated paraganglioma re-presenting twenty-three years after initial surgery. Issue 8 (August 2017) - Casey, Ruth T; Challis, Benjamin G; Marker, Alison; Pitfield, Deborah; Cheow, Heok K; Shaw, Ashley; Park, Soo-Mi; Simpson, Helen L; Maher, Eamonn R