CDT Skin Cancer Screening & Education 3

Question 1

Which of the following best describes an actinic keratosis (AK)?

Accepted Answer

A premalignant lesion that may progress to squamous cell carcinoma

Answer

Actinic keratoses are UV-induced premalignant lesions with potential to progress into invasive squamous cell carcinoma if left untreated.

Question 2

Field cancerization in the context of skin cancer education refers to:

Accepted Answer

A widespread area of UV-damaged skin harboring subclinical genetic mutations

Answer

Field cancerization describes large areas of chronically sun-damaged skin with widespread mutagenic changes that predispose to multiple skin cancers.

Question 3

A patient on long-term immunosuppressive therapy after organ transplantation is at highest risk for which skin cancer?

Accepted Answer

Squamous cell carcinoma

Answer

Immunosuppressed transplant recipients have a dramatically elevated risk—up to 65-fold—for squamous cell carcinoma compared to the general population.

Question 4

The 'ugly duckling' sign in melanoma screening refers to:

Accepted Answer

A lesion that looks noticeably different from a patient's other moles

Answer

The 'ugly duckling' concept holds that a melanoma often stands out as morphologically distinct from a patient's other nevi, prompting further evaluation.

Question 5

Breslow thickness in melanoma staging measures:

Accepted Answer

Vertical depth of tumor invasion from the granular layer in millimeters

Answer

Breslow thickness is the vertical depth of melanoma invasion measured in millimeters from the epidermal granular layer to the deepest tumor cell.

(CDT) Certified Dermatology Tech Practice Test

(CDT) Certified Dermatology Tech Practice Test

CDT Skin Cancer Screening & Education 3