Nonmelanoma skin cancer of the head and neck: nonsurgical treatment.

Nonmelanoma skin cancer (NMSC) is one of the most prevalent types of cancer worldwide, with basal cell carcinoma and squamous cell carcinoma being the most frequent histologic types. Surgical excision remains the mainstay of treatment, but nonsurgical treatment options may be indicated in specific cases. Nonsurgical treatment options for NMSC may be preferred as good alternatives under certain circumstances. This review provides a comprehensive overview of the nonsurgical treatment modalities for NMSCs, such as curettage and electrodesiccation, cryotherapy, radiotherapy, laser, photodynamic therapy, immunotherapy, and retinoid therapy.