Would you recommend sentinel lymph node biopsy at time of wide excision for a 3 mm Merkel cell carcinoma of the cheek/lateral canthus?  

Unlike melanoma and certainly NMSC, MCC is highly unpredictable in nature, with clinical lesion size having little clinical prognostic value. As such, it appears that SLNB is valuable in many cases for the purposes of prognosis and in determining the need for adjuvant systemic therapy and radiation....