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Possible outcomes of sentinel lymph node assessment followed by total groin lymph node removal (inguinofemoral lymphadenectomy). (A) Negative sentinel and rest of the groin nodes (True negative), (B) Positive sentinel node but negative rest of the groin nodes (True positive), (C) Positive sentinel and groin nodes (True positive) and (D) Negative sentinel but positive groin nodes (False negative)
