Which one of the following carcinomas is locally invasive but rarely forms metastases in lymph nodes and distant sites?

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Basal cell carcinomas of the skin, the most common malignant tumor in the human body, is a locally invasive malignant tumor, which, if untreated, could ultimately kill the host. However, these tumors are usually diagnosed early and removed adequately, so that they almost never metastasize.

Which One of the Following Carcinomas Is Locally Invasive but Rarely