case_images: PMC6758835_01
case_images: A. CECT Scan showing enhancing nasopharyngeal mass (asterisk) and
  B. Angiography showing vascular tumour (asterisk) supplied by sphenopalatine (black arrowhead) and internal maxillary (white arrowhead) arteries. Adobe Photoshop CC 20.01 release was used to erase identifying patient details, remove pixelated areas from black background, and enhance contrast to sharpen image (applied to entire image).
case_images: f1000research-8-22942-g0000.jpg
case_images: PMC6758835_01_f1000research-8-22942-g0000.jpg
case_images: f1
case_images: Contrast-enhanced computed tomography (CT) scans showed a hyperdense right intranasal mass corroborated by preoperative embolization angiography as an intranasal vascular tumour supplied by the right sphenopalatine artery and internal maxillary artery (IMA) ( Figure 1A and 1B). The vast majority (90%) of the blood supply arose from distal sphenopalatine branches of the right IMA, while the remaining 10% came from both ascending pharyngeal arteries ( Figure 1B).
case_images: A. Intraoperative endoscopic view of the sphenopalatine artery (black arrowhead) supplying the mass (black asterisk) and
  B. Gross specimen measuring 4.7 x 3.2 x 2.7 cm. Adobe Photoshop CC 20.01 release was used to erase identifying patient details and sharpen the image (applied to entire image 2
  B).
case_images: f1000research-8-22942-g0001.jpg
case_images: PMC6758835_01_f1000research-8-22942-g0001.jpg
case_images: f2
case_images: The sphenopalatine artery was cauterized and ligated, and the mass was delivered trans-orally ( Figure 2A and 2B).
case_images: Timeline summarising important information from the case presentation.
case_images: f1000research-8-22942-g0002.jpg
case_images: PMC6758835_01_f1000research-8-22942-g0002.jpg
case_images: f3
case_images: Figure 3 summarizes the timeline.