Principle: The radiopharmaceutical is taken up by the lymphatic vessels and transported to the axillary lymph nodes after intradermal injection into the interstitial space of the dorsal limbs. Indications: dg. swellings of the extremities speed and intensity of lymphatic drainage Patient preparation: none Duration of examination: approx. 90 minutes Radiopharmaceutical: 99mTc – colloid Method of application: into the interstitium by punctures into the interstitial spaces Examination methodology: The examination has 2 parts. In the first part, the patient lies on his/her back and the radiopharmaceutical is injected subcutaneously into the dorsum of the extremities. After the application, we focus the device on the axillary area (pelvis, axilla) and follow the penetration of the radiopharmaceutical into this area with a dynamic study. This part takes about 30 minutes. After its completion, we follow this transport with a half-body recording. Afterwards, we let the patient exercise, ev. The patient is asked to exercise the limbs by walking. After about 30 minutes of weight-bearing, the patient lies down on his/her back again and we check by scanning how the transport of the radiopharmaceutical in the limbs has changed. We complete the examination by calculating the accumulation of radiopharmaceutical in the regional nodes, i.e. by determining the percentage of radiopharmaceutical at the end of both scans.