Anatomy | The Three Types of Skin Cancers

The video tutorial covers the layers of the epidermis and their association with skin cancer. It explains the three major types of skin cancer: basal cell carcinoma, squamous cell carcinoma, and malignant melanoma. Basal cell carcinoma is the most common but least malignant, arising from the stratum basale. Squamous cell carcinoma, originating from the stratum spinosum, is more dangerous due to its potential to metastasize. Malignant melanoma, the most deadly, affects melanocytes and spreads rapidly. The ABCD rule is used for melanoma detection, focusing on asymmetry, border irregularity, color, and diameter.

Which layers of the epidermis are most associated with cancer risk due to their mitotic activity?

• Stratum corneum and stratum lucidum

• Stratum granulosum and stratum spinosum

• Stratum spinosum and stratum basale

• Stratum lucidum and stratum granulosum

What is the most common type of skin cancer?

• Basal cell carcinoma

• Squamous cell carcinoma

• Malignant melanoma

• Melanocyte carcinoma

Why are basal cell carcinomas considered less dangerous than other skin cancers?

• They are the most malignant

• They spread rapidly to lymph nodes

• They do not arise from the epidermis

• They are the least malignant and easily removed

What is a key factor in the development of squamous cell carcinoma?

• Poor diet

• Lack of melanin

• Excessive sun exposure

• Genetic predisposition

Which type of skin cancer is known for its rapid metastasis?

• Malignant melanoma

• Squamous cell carcinoma

• Basal cell carcinoma

• Keratinocyte carcinoma

What does the 'A' in the ABCD rule for detecting melanoma stand for?

• Area

• Asymmetry

• Alignment

• Alopecia

Which characteristic is NOT part of the ABCD rule for melanoma detection?

• Color uniformity

• Diameter

• Asymmetry

• Border irregularity