T.12.1 A LATE HEMATOMA AFTER ENDOSCOPIC FULL-THICKNESS RESECTION OF THE APPENDICEAL ORIFICE: WHAT WE SHOULD LEARN FROM PREOPERATIVE ANATOMICAL ASSESSMENT: A CASE REPORT. (March 2023) - Gibiino, G.; Sbrancia, M.; Jung, C.F.M.; Binda, C.; Coluccio, C.; Vizzuso, A.; Giampalma, E.; Saragoni, L.; Ercolani, G.; Fabbri, C.