Fig. 7From: Sonographic appearance of syphilitic induration mimicking squamous cell carcinoma in the lower lip: a case reportSonograms of the lesion on the lower lip after treatment with amoxicillin. A gray-scale transverse sonogram (left) and color Doppler sonogram (right) of the lesion at 3 months after the initiation of treatment. Her lip lesion showed remarkable improvement at 3 months after treatment initiation, with only a hypoechoic lesion with blood flow signals remainingBack to article page