**4.1 Theories of origin**


the anatomical location of the tumor at pterygoid base/ sphenopalatine foramen as well as its supply by maxillary artery. This also explains the need to drill pterygoid base to remove tumor remnants in this site of origin so as to avoid tumor recurrence. As first branchial arch artery is connected to C4 segment of internal carotid artery (ICA), its incomplete regression also explains how JNAs acquire blood supply from ICA despite no anatomical proximity [21].
