Skin Cancers Flashcards Preview

Jason's MD2 Core Conditions > Skin Cancers > Flashcards

Flashcards in Skin Cancers Deck (66)
1

Non-melanoma skin cancer account for how many %?

98%

2

out of Non-melanoma skin cancers, how many are BCC? and SCC?

BCC: 67%
SCC: 31%

3

which skin cancer is most dangerous?

Melanomas

4

what is the most common skin cancer in Aus?

BCC

5

skin cancer directly related to?

UV exposure

6

SCC comes from which cells?

keratinocyte dysplasia

7

what is Bowen's disease?

SCC in situ

8

SCC symptoms?

tender to touch
usu. freely moving

9

SCC growth timeline?

over weeks/months

10

SCCs more or less dangerous and common that BCC?

more dangerous
less common

11

where do you find SCCs usually?

chronic sun exposed sites

12

risk factor for SCC besides sun exposure?

smoking

13

where does SCCs like to be?

back of hands
ears
lips
legs
head

14

where does SCCs like to be?

back of hands
ears
lips
legs
head

15

who else is susceptible to SCCs besides chronic sun exposure ppl?

immunosuppressed ppl

16

treatments for SCC?

surgical excision
radiotherapy

17

what does BCC look like?

pearly nodule with central ulceration

18

what is around the BCC usually?

telangiectasia

19

where do BCCs happen?

in areas of sporadic 'binge' sun: big burn areas
Head, Face, Neck, Trunk

20

BCCs invasive? metastatic?

locally invasive
rarely metastasize

21

BCCs painful or tender?

Not so much

22

what is a red flag for BCCs?

bleeding from nodule

23

what does the superficial BCC present as?

solitary red plaque not responding to topical treatment

24

how to treat nodular/infiltrating BCCs?

surgery

25

how to treat superficial BCCs?

surgery
topical imiquimod
photodynamic therapy
serial curettage

26

what is Actinic Keratoses? where? tender?

solar keratoses "sun spots"
scaly lesions on dorsum of hands
Not tender

27

Actinic Keratoses dangerous?

rarely progress to invasive SCC

28

what is the red flag for Actinic Keratoses?

growing hyperkeratotic
tender nodule

means it's transforming into SCC

29

Actinic Keratoses treatment?

Cryotherapy
topical
surgery

30

Bowen's disease affects how much of skin? AKA?

full thickness
AKA SCC in situ

31

Bowen's disease affects how much of skin? AKA?

full thickness (non invasive SCC)
AKA SCC in situ

32

what age do you usually stop getting new naevi?

Age 40

33

all pigmented lesions from melanocytes?

Nope, can be pigmented BCC, AK

34

the moles you're born with are called?

congenital naevi

35

which congenital naevi worry?

large ones that may transform
cosmesis

36

bening junctional naevi colour and size? where?

uniform colour

37

where are benign compound naevi found skin layers wise?

both epidermis and dermis

38

hair in benign compound naevi ?

yes and no

39

colour of benign compound naevi ?

even colour

40

benign intradermal naevi colour?

paler, skin coloured

41

describe benign moles?

small
regular uniform colour
regular edges
symmetrical
don't change with time

42

freckles induced by?

sun induced pigmentation

43

freckles due to?

melanin not melanocytes

44

what are lentigines? who? grows?

sun-induced pigmented macules
middle aged ppl
static in size

45

who gets seborrhoeic keratoses? appearance? grows?

older ppl
warty 'stuck on' appearance
larger with time

46

pigmented seborrhoeic keratosis malignant?

nope

47

describe a dysplastic naevi?

larger >5mm
2 or more colours
irregular borders

48

dysplastic naevi malignant?

Nope

49

2/3 melanomas arise out of?

normal skin
NOT preexisting naevi

50

should we excise dysplastic naevi prophylactically?

Nope unless looks suspicious

51

risk factors of melanoma?

More than 5 dysplastic naevi
more than 100 tpical naevi
blistering sunburns
immunosuppression
red hair blue eyes

52

risk factors of melanoma?

More than 5 dysplastic naevi
more than 100 tpical naevi
blistering sunburns
immunosuppression
red hair blue eyes

53

where do men and women get melanomas?

Men: trunk head, neck
Women: Legs

54

ABCDE of naevi?

asymmetry
border irregularity
colour variation
diameter (>5mm)
evolution (change trumps everything)

55

melanomas need to be >5mm for concern?

Nope, early evolution can be smaller.

56

2 things that trump dx for melanoma?

new lesion
changing naevus

57

most common melanoma?

superficial spreading melanoma (SSM)

58

what is lentigo maligna?

melanoma in situ, not into dermis

59

what is the worst prognostic kind of melanoma?

nodular melanoma

60

what is Acral lentiginous melanoma?

on hands and feet
in-situ

61

Nodular melanoma fulfill ABCDE?

Nope
rapid growth and early invasion

62

who has nodular melanomas?

older males

63

melanoma characteristics? EFG?

elevated
firm
growing

64

red flags for melanoma?

new
changing
bleeding
irritating/changing

65

Non melanoma skin cancer lesions occur separately?

Nope, can be on the same patient at same time

66

how to confirm Non melanoma skin cancer lesions ?

punch biopsy
shave biopsy