Sonography of the Primary Cutaneous Melanoma: A Review
Figure 2
Melanoma primary tumor infiltrating dermis. (a) Ultrasound (grey scale, transverse view, dorsal region) shows oval-shaped hypoechoic lesion (*) that involves the dermis. The epidermis also appears more hyperechoic and thickened. (b) Color Doppler ultrasound (transverse view) demonstrates increased blood flow within the tumor that predominates at the bottom of the lesion (*). (c) Histology (HE × 4, courtesy of Dr. Laura Carreño, Department of Pathology, Hospital Clinico Universidad Chile, University of Chile, Santiago, Chile) demonstrates atypical melanocytic cells infiltrating epidermis and dermis. Prominent vessels are detected in the subtumoral area. Abbreviations: e: epidermis; d: dermis; st: subcutaneous tissue; *: melanoma site.
