Basal cell carcinoma(BCC)is the most common cutaneous malignancy

and its incidence is increasing year by year.BCC can cause severe complications through the local damage. Surgical resection is the preferred treatment

accurate pathological classification

risk assessment and the boundary is important to the prognosis of patients with surgery. In recent years

high-frequency ultrasound has been used more and more in skin diseases. In this paper

the application of high-frequency ultrasound in the diagnosis and treatment of basal cell carcinoma is reviewed.