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