“…3,24,30 Some investigators think location on the scalp should be included, given particular surgical difficulties in this area (see later discussion of SCC on the scalp). 32,34 Poor outcomes may also be influenced by older age, 24 presence of extracutaneous tumors, 35 and history of occupational sun exposure. 14 Lee and colleagues 36 found with head and neck NMSC that the 3 most important factors predicting poor outcomes were recurrent lesions, lesions involving nerve, and lesions involving bone.…”