PURPOSE: A sentinel lymph node maker containing albumin labeled with radioisotope is provided to improve accuracy of sentinel lymph node biopsy. CONSTITUTION: A sentinel lymph node marker contains albumin which is labeled with radioisotope and is conjugated with fluorescent dye of near infrared radiation area and dye of visible light area. The fluorescent dye is indocyanine green. The radioisotope is Tc-99mTc. The dye is Evans blue. The albumin is human serum albumin.
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