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Figure 4 | SpringerPlus

Figure 4

From: Contribution of dynamic sentinel lymphoscintigraphy images to the diagnosis of patients with malignant skin neoplasms in the upper and lower extremities

Figure 4

A case of malignant melanoma of the right dorsum manus. (a) Early-phase dynamic image (within 2 min of radiotracer injection) showed that lymphatic channels both passed through the cubitus (black arrow), and did not pass through the cubitus (black arrowheads). Therefore, both cubital and axillary LNs were diagnosed as SLNs. (b) Late-phase dynamic image (about 10 min after radiotracer injection) showed the lymphatic channel passing only through the cubitus (black arrow). (c) Static image about 20 min after tracer injection also showed the only lymphatic channel passing through the cubitus (black arrow). (d) Diagram of early-phase dynamic image. Without a dynamic scan, and without awareness of the lymphatic drainage only visualized on early-phase dynamic images, the axillary LN would have been incorrectly diagnosed as the second echelon LN.

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