Fig. 3From: Intraoperative variations of the sphenopalatine artery between epistaxis and non-epistaxis cases: a comparative endoscopic analysisa–f Intraoperative endoscopic pictures from both groups showing the variable relationship of SPA with the mucosa of the lower part of basal lamella (black star) and sphenopalatine nerve bundle (black arrow); it was separable from the main arterial trunk in the non-epistaxis group (a–c) and amalgamated, inseparable in epistaxis group (d–f)Back to article page