Atlas — Of Dermatologic Ultrasound

: Typically seen as hypoechoic (dark) lesions with irregular borders.

: Characterized by thickening of the epidermis and a "subepidermal low-echogenic band" (SLEB) representing inflammation. 3. Cosmetic & Aesthetic Procedures Atlas of Dermatologic Ultrasound

: Standard dermatologic exams require probes of at least 15 MHz ; ultra-high frequency (UHFUS) can reach up to 70 MHz for viewing minute structures like hair tracts. Layer Echogenicity : Epidermis : Appears as a bright, hyperechoic line. : Typically seen as hypoechoic (dark) lesions with