Skin

Question 1

dermatofibrosarcoma treatment?

Answer 1

Due to its papillary projections this is best treated with wide local excision (2cm margins) OR a Moh’s procedure.

For sarcomas in general:

• Radiation if > 5 cm
• Chemo if high-grade, > 10 cm, OR > 5cm and liposarcoma or synovial

Question 2

Tissue taken with Full Thickness Skin Graft

Answer 2

Epidermis and Dermis, subQ tissue should be removed from graft to allow better engraftment

Question 3

Skin grafts get nutrients first by which mechanisms and in what order…

Answer 3

First imbition,
then inosculation starts day 3,
then angiogenesis by day 5.

Question 4

Which has less primary contracture FTSG or STSG?

Answer 4

Split thickness skin graft have less primary contracture but more secondary contracture that FTSG.

Question 5

How do split thickness skin grafts heal?

Answer 5

They heal by epithelialization hair follicles remaining in the wound bed AND wound edge