: Ultrasound is superior to clinical exams for staging, as it can detect subclinical fistulas and fluid collections.
: Typically seen as hypoechoic (dark) lesions with irregular borders. Atlas of Dermatologic Ultrasound
The atlas typically categorizes skin conditions based on their sonographic signatures. 1. Benign and Malignant Tumors : Ultrasound is superior to clinical exams for
High-frequency ultrasound (HFUS) uses sound waves to create real-time images of the skin layers. Atlas of Dermatologic Ultrasound
: Differentiates solid tumors from fluid-filled cysts (anechoic) or fatty lipomas (often oval and hypoechoic). 2. Inflammatory Diseases
: Also hyperechoic but slightly less so than the epidermis due to collagen content.