Atlas Of Dermatologic: Ultrasound

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

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

: Ultrasound is superior to clinical exams for staging, as it can detect subclinical fistulas and fluid collections. : Typically seen as hypoechoic (dark) lesions with

: 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

The atlas typically categorizes skin conditions based on their sonographic signatures. 1. Benign and Malignant Tumors

: Ultrasound helps measure the depth (ultrasonographic Breslow index) and check for nearby satellite metastases.