Calibre persistent labial artery (CPLA) is defined as a primary arterial branch that penetrates into the submucosal tissue without division or decrease in diameter. It usually presents as an asymptomatic papule on the lower lip and can be easily misdiagnosed as a varix, haemangioma, venous lake, mucocele or fibroma. When it is ulcerated, squamous cell carcinoma is the most usual differential diagnosis. The most frequently used method to confirm the diagnosis of CPLA has been excisional biopsy, which carries the risk of profuse bleeding. Angiography, another invasive method, has also been used. Here, we report a case of a 20-year-old woman with a 5-year history of multiple CPLA lesions involving both upper and lower lips. In this case, the diagnosis was made clinically and confirmed by Doppler ultrasonography, which is a noninvasive and simple diagnostic tool.

This study utilized CBCT images to identify bifid mandibular canals and accessory mental foramina in children. Cone-beam CT was found to be a useful technique for detecting secondary canals. However, despite the fact that CBCT uses less ionizing radiation than other types of three-dimensional imaging, unless the diagnostic information provided through CBCT improves treatment results, CBCT should not be recommended for use in children or adolescents.

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