Certified Wound Ostomy Nurse (CWON) Practice Test

What is basal cell carcinoma?

1. A type of benign tumor

2. The most common malignancy

3. An advanced stage of melanoma

4. A rare skin infection

The correct answer is: The most common malignancy

Basal cell carcinoma is recognized as the most common type of skin cancer, characterized by the uncontrolled growth of basal cells, which are located in the lowest layer of the epidermis. This malignancy arises primarily due to prolonged exposure to ultraviolet (UV) radiation from the sun or tanning beds. While it is classified as a form of skin cancer, basal cell carcinoma is generally not as aggressive as other cancers, and it seldom metastasizes to other parts of the body. However, it can lead to significant local tissue destruction if not treated promptly. Its prevalence highlights the importance of sun protection and regular skin examinations, especially for individuals at higher risk, such as those with fair skin or a history of sunburns. Understanding the nature of basal cell carcinoma as the most common malignancy provides a foundational knowledge essential for recognizing symptoms, advising patients, and implementing preventive measures in clinical practice around wound and ostomy care.