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A benign SLN (arrows). a B-mode image demonstrates homogeneous LN with small fatty hilum likely representing reactive LN. b Contrast-enhanced images with dual-targeted microbubble and c IgG control microbubbles demonstrate no retention of both dual-targeted and control microbubbles within the LN. d LN histology (HE stain, ×40 magnification) demonstrates no evidence of metastatic melanoma involvement.
