Lab

Question 1

Shave

Answer 1

Full thickness of dermis not required, low suspicion of melanoma

Question 2

Excisional

Answer 2

Removal of entirety of large, deep lesions. 2-5mm margin of normal skin. Suspected melanoma

Question 3

Punch

Answer 3

Core piece of tissue for sampling into deep dermis. Suture or secondary intention healing

Question 4

Incisional

Answer 4

Small portion for pathology to determine if more needed

Question 5

Mohs

Answer 5

Surgical technique for ensuring removal of entire basal or squamous cell removed.

Question 6

Electrodesiccation

Answer 6

Electrical current to destroy tissue. Does not allow pathology assessment but can be used on benign and malignant

Question 7

Cryotherapy

Answer 7

Liquid nitrogen to destroy tissue. Removal of benign and premalignant lesions. Causes hypopigmentation

Question 8

Cryo- Indications

Answer 8

Wart removal, epithelial precancerous and non-cancerous lesions

Question 9

Cryo- Application

Answer 9

Freeze, thaw 30-45 sec, refreeze. Repeat every 2-4 weeks for several cycles.

Question 10

Cryo- Advers Effects

Answer 10

Hypopigementation in light skinned, hyper pigmentation in dark. Scarring-> keloids?