Plastics, Skin

Question 1

_____: antigen recognition, involved in contact hypersensitivity (in skin)

Answer 1

Langerhans cells

Question 2

__________: sensory mechanoreceptors (in skin)

Answer 2

Merkel cells

Question 3

____________: presents as red/purple papulo-nodule. A neuroendocrine tumor with staining for neuron specific enolase and neuorofilament protein

Answer 3

Merkel cell carcinoma

Question 4

_____: painful, subungal tumor, benign, from glomic end organ. Rx: ___________

Answer 4

Glomus cell tumor; Rx: shell out

Question 5

_______: involves _______ glands, therefore seen after puberty in axilla, groin

Answer 5

hidadrenitis; apocrine glands

Question 6

Basal cell how much more/less common than SCC?

Answer 6

4:1 more common than SCC

Question 7

peripheral palisading of nuclei on pathology……

Answer 7

BCC

Question 8

Which contracts less? FTSG or STSG….

Answer 8

FTSG contracts less than STSg

Question 9

STSF donor site regenerates from _____ and ____-

Answer 9

hair follicles; skin appendages

Question 10

STSG blood suply by ________ 1st few days;

then ______ days 2-7

Answer 10

imbibition 1st few days; neovascularization days 2-7 (capillary ingrowth)

Question 11

Flap necrosis: most commonly due to _____

Answer 11

venous thrombosis

Question 12

Risks for melanoma:

________, _____, ______, ____

Answer 12

dysplastic nevi, congenital nevi, BK, mole syndrome

Question 13

Depth of melanoma: cm margins?

Depth 4mm; ______

Answer 13

1; 2; 3 cm margins respectively

Question 14

Melanoma sites by most common:
eyes, skin, rectum?
Most common site men? women?

Answer 14

skin > eyes> rectum; #1 skin site for men is back, in women is legs

Question 15

Melanoma worse prognosis if on ________ (multiple)

Answer 15

BANS: back, arms, neck, scalp

Question 16

Breslow measurements:

_____=( ); _________; ________; _______= ( )

Answer 16

4mm (80% distant mets)

Question 17

4 types of melanoma; worst type?

Answer 17

nodular (worst, early mets), superficial spreading, lentigo maligna, acral lentiginous

Question 18

_______: extends beyond wound margins; failure of ____ breakdown and incr _____ production

Answer 18

keloid; collagen; collagen

Question 19

Hypertropic scar: does it extend beyond wound margins?

Answer 19

NO, unlike keloid