Fig 4.

The utility of lymph node biopsy in patients with MCC with clinically localized disease by both examination and baseline imaging. Outcomes of pathologic nodal evaluation are shown for patients with clinically localized disease by both examination/history and baseline imaging (n = 412). Not done indicates that pathologic nodal evaluation was not performed. (These patients are included in the analysis set to avoid falsely elevating the rate of SLNB utility by clinician bias toward performing SLNB in higher-risk clinical scenarios.) LN, Lymph node; MCC, Merkel cell carcinoma; neg, negative; Path, pathologic nodal evaluation; pos, positive; SLNB, sentinel lymph node biopsy.