Completeness of regional lymph node dissection was controlled in 23 patients with melanoma malignum. For that purpose 3--6 weeks after block-dissection lymph node scintigraphy was performed, by administration of intercostal and interdigital radiopharmacutical. Blockdissection was considered as complete, when neither after intercostal, nor after interdigital administration, any lymph nodes were delineated. On the basis of investigations until now, postoperative lymph node scintigraphy proves to be suitable, held to be a non-invasive method for controlling completeness of blockdissection.
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