FIGURE 3. Comparison of lymphoscintigraphic images in patient with melanoma at midline of back. Injection sites are covered by lead sheet. Close-injection images (A and B) show convergence of several lymph channels toward single node in left axillary basin and one lymph channel to one SLN in right axilla. Distant-injection images (C and D) show additional lymph channel draining to additional SLN in right axilla. Dynamic image (C) shows delayed appearance of additional SLN.

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