Recurrences are significantly associated with an advanced tumor stage [45, 64, 66, 68, 70], with a reduced survival time [18, 45, 66, 69], and with the expression of biomarkers like Hyams grade (grade III–IV) [34, 44, 45, 66] or insulinoma‐associated protein 1 (INSM1) [68]. Here, INSM1 is linked to neoplasm.