Dermatologic Ultrasound: Atlas Of
High-frequency ultrasound (HFUS) uses sound waves to create real-time images of the skin layers.
: Ultrasound helps measure the depth (ultrasonographic Breslow index) and check for nearby satellite metastases. Atlas of Dermatologic Ultrasound
: Differentiates solid tumors from fluid-filled cysts (anechoic) or fatty lipomas (often oval and hypoechoic). 2. Inflammatory Diseases High-frequency ultrasound (HFUS) uses sound waves to create
: 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.
: Ultrasound is superior to clinical exams for staging, as it can detect subclinical fistulas and fluid collections.
