Atlas Of Dermatologic | Ultrasound

: Differentiates solid tumors from fluid-filled cysts (anechoic) or fatty lipomas (often oval and hypoechoic). 2. Inflammatory Diseases

: Appears dark (hypoechoic) because it is mostly fat lobules. 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. Atlas of Dermatologic Ultrasound