-To review the normal ultrasound appearance of the skin layers. -To enumerate the most common benign and malignant soft tissue masses that we can find in our daily practice,
and describe the common findings for each of them.
Soft tissue masses are a very common presenting complaint.
Most of the times these masses require imaging for diagnosis,
and ultrasound is the first modality in most of the cases. In each of the skin layers there are different cells and structures,
each of them can originate different tumors. -Epidermis is the most superficial layer,
hyperechoic and up to 0.6 mm. -Dermis (1-4 mm) is less hyperechoic,
with hypoechoic areas (vessels,
hair follicles and nerves) -Subcutaneous...
Imaging findings OR Procedure Details
Ultrasound findings can help us diagnose soft tissue lesions mainly by their appearance (cystic,
histologic origin (epidermic,
anatomic localization and vascularization. Epidermic inclusion cysts: Hypoechoic cysts )posterior acoustic enhancement) connected to dermis,
they can show a subepidermic track Can be heterogeneous (if infected or chronic) or with lobulated/irregular margins with surrounding foreign body reaction (because of keratin leak if it breaks)...
Ultrasound is a powerful tool for diagnosis or help diagnosis orientation of soft tissue masses.
Adequate knowledge of skin histology and soft tissue masses can help us suggest a diagnosis or adequate differential diagnosis,
and realize the need for other imaging techniques or biopsy.
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