Sonography of the Primary Cutaneous Melanoma: A Review
Figure 1
Melanoma in situ. (a) Ultrasound (transverse view, plantar region) shows lack of detectable solid tumor. Notice the partial loss of the normal bilaminar hyperechoic pattern of the plantar epidermis in parts of the lesion (arrows). (b) Color Doppler ultrasound demonstrates lack of hypervascularity at the lesional site. (c) Histology (HE × 100, acral skin, courtesy of Dr. Laura Carreño, Department of Pathology, Hospital Clinico Universidad Chile, University of Chile, Santiago, Chile) shows atypical nests of melanocytic cells within the epidermis (in situ). At the dermis there are some melanophages (arrows). Abbreviations: sc: stratum corneum; d: dermis; st: subcutaneous tissue.
