Skin Cancer

Question 1

Actinic Keratoses:

Answer 1

pre-cancerous lesion
feel like sandpaper and a tender when touched.
could develop into SCC or BCC
tx: liquid nitrogen cyrotherapy or topical therapies such as
-5-FU
-Imiquimod

Question 2

Non-melanoma Skin Cancers

Answer 2

• basal cell carcinoma
• squamous cell carcinoma
• merkel cell carcinoma
• cutaneous t-cell lymphoma

Question 3

Describe BCC:

Answer 3

IT IS THE MOST FREQUENT SKIN CANCER!!! Metastases are rare. PEARLY papule, erythematous patch >6mm or non healing ulcer with a history of bleeding–> ARBORIZING VESSELS (surface telangiectasisas)

tx: elecrodessication and curettage, surgical excision, radiation therapy, topical therapy

Question 4

When might you use Mohs surgery?

Answer 4

recurrent cancer

cancers of the face, hands feet, genatalia of high cosmetic importance.

Question 5

describe SCC:

Answer 5

may arise from ACTINIC KERATOSIS.
non healing, warty
several forms:
1. bowen’s- in situ
2. erythroplasia of queyrat: on the penis
3. keratocanthoma = low grade, raised nodule with KERATIN PLUG.
4. cutaneous horn

tx: effudex or aldara, liquid nitrogen, radiation therapy, curettage, surgical excision.

Question 6

malignant melanoma:

Answer 6

ABCDEs of melanoma
a = asymetry
b= border
c= color
d= diamter (>6mm)
e = elevation

also graded using breslow’s

Question 7

CTCL:

Answer 7

mycosis fungoides most common type!
NO CURE, but normal life expectancy
Leukemi form is known as “Sezary syndrome”
-tend to be diagnosed in 5-6th decade of life.
-multiple stages involved, patch, plaque, and tumor stage.
may take multiple biopsies.