This study evaluated the diagnostic accuracy of dermoscopy-guided high-frequency ultrasound
(DG-HFUS) for preoperative lateral margin assessment in basal cell carcinoma. DG-HFUS
achieved 94.4% sensitivity and 93% specificity for detecting tumour presence within
2 mm of the margin, with strong correlation to histopathology. The results suggest
that DG-HFUS is a promising noninvasive tool for surgical planning, especially where
Mohs surgery is not available.
