case_images: PMC6157096_01
case_images: A 24-year-old male with soft pulsating nodule on the left vermilion of the upper lip (arrow).
case_images: JCIS-8-41-g002.jpg
case_images: PMC6157096_01_JCIS-8-41-g002.jpg
case_images: F1
case_images: A provisional diagnosis of peripheral angiomatous lesion was given [Figure 1].
case_images: Longitudinal view sonographic image shows tortuous course of superior-labial artery branch from deeper layers to superficial mucosal component.
case_images: JCIS-8-41-g003.jpg
case_images: PMC6157096_01_JCIS-8-41-g003.jpg
case_images: F2
case_images: An arterial vessel with a tortuous course was located on the left side of the upper labial mucosa [Figure 2].
case_images: Ultrasound image shows the arterial location at 0.9 mm below the mucosal surface with a diameter of 1 mm transversely.
case_images: JCIS-8-41-g004.jpg
case_images: PMC6157096_01_JCIS-8-41-g004.jpg
case_images: F3
case_images: The diameter of the artery was 1mm near the periphery [Figure 3].
case_images: Spectral measurements reveal high resistance and flow velocity with a dicrotic notch in the superior-labial artery branch, left side. PSV: Peak systolic velocity, EDV: End-diastolic velocity).
case_images: JCIS-8-41-g005.jpg
case_images: PMC6157096_01_JCIS-8-41-g005.jpg
case_images: F4
case_images: The spectral curve analysis showed moderate flow velocity, high resistance, and a dicrotic notch with forward flow in both systole and diastole [Figure 4].