Which of the following statements is true concerning skin cancer?
A) Basal cell carcinoma produces an open ulcer.
B) Squamous cell carcinoma often arises from a preexisting mole.
C) Squamous cell carcinoma arises from cells within the stratum basale.
D) Malignant melanoma poses little danger of metastasis.
E) All of these statements are true.

Question

Quizplus · Accepted Answer

Basal cell carcinoma, the most common type of skin cancer, often appears as a raised, smooth, pearly bump on the sun-exposed skin of the head, neck, or shoulders. Sometimes small blood vessels can be seen within the tumor. Crusting and bleeding in the center of the tumor frequently develops. It is often mistaken for a sore that does not heal. This type of cancer is usually caused by long-term exposure to UV radiation from sunlight. It does not typically produce an open ulcer.

Which of the Following Statements Is True Concerning Skin Cancer