Diagnostic imaging technique commonly used in lymphology. It features an interdigital injection of Technetium-99m (99mTc) labeled nanocolloids, which, being highly lymphotropic, are only drained through the lymphatic pathways. Then, with the acquisition of serial views from a gamma-camera, the anatomy of lymphatic, both superficial and deep, pathways can be outlined, and their drainage capacity assessed over time. With this simple, moderately invasive examination, requiring only an intradermal subcutaneous or deep injection of radioisotopic tracer, the extent of lymph stasis can be assessed, preferential drainage pathways and lymph node structures detected, and any other parameters defined, that may be useful to begin treatment, as well as for long-term follow-up of applied therapies.