PRE-SURGICAL DIAGNOSTIC PARALLELS IN BASAL CELL CARCINOMA OF THE SKIN.

The aim of the study was to determine the basic dermatoscopic principles for diagnosis of nonpigmented basal cell carcinoma in young patients, to analyze the volume of preoperative high-resolution ultrasound, to compare indicators and to justify the expediency of using a double diagnostic test "Dermatoscopy + ultrasound" to determine the indications for surgery. The paper presents 15 cases of basal cell carcinoma in young patients, all cases studied by dermatoscopy (Kittler's algorithm) and high-frequency ultrasonography. In cases of the superficial type of BCC, hypoechoic formations with uneven growth in the dermis to a depth of 0.5-0.8 mm with a uniform structure and enhanced vascularization were observed. Dermatoscopically, this variety is characterized by a varied pattern of vessels - serpentine, branched, monomorphic. Erosive surfaces are represented by structureless areas. Irregular white lines, perpendicular in places, are also characteristic. In the nodular form, the lesions were hypoechoic, with clear, even symmetrical contours, regular oval or round shape, with a germination depth of 1.3-1.5 mm. When measuring blood flow, increased vascularization was observed. Dermatoscopically was fixed monomorphic branched vascular pattern, structureless areas and serpentine white lines Both ultrasound and dermatoscopic indices fully confirm the diagnosis of basal cell carcinomas, establish penetration depth, the documented dimensions make possible to resolve the issue of optimal surgical intervention.