Cutaneous squamous cell carcinoma of the scalp extending to the skull: A case report and review of the literature.

Squamous cell carcinoma (SCC) of the scalp has increased prevalence in older patients and often presents later in life. Mohs micrographic surgery remains the most effective treatment in most cases. Delayed presentation may result in localized bony invasion or distant metastases. We present a case of an elderly woman presenting with extension of SCC into the parietal bone of the skull.