Melanoma Flashcards Preview

Hugh's MD2 Core Conditions and Presentations > Melanoma > Flashcards

Flashcards in Melanoma Deck (18):
1

What determines the excision margin of a wide local excision for a melanoma?

The Breslow thickness

2

How do you assess a mole?

A - Asymmetry

B - Boarder

C - Colour

D - Diameter >6mm

E - Elevated

F - Firm

G - Growing

Assess for local spread

3

What are some risk factors for melanoma?

UV exposure

Previous melanomas

Many moles

Complexion - fair skin and hair

Immunosuppression

Sun beds

FHx

4

Outline the Breslow classification system and how the categories dictate excisional margins

In situ - 5mm

<1mm - 1cm

1-4mm - 1-2cm

>4mm - 2cm

5

How are melanomas removed?

Wide local excision

6

How are melanomas classified?

Superficial spreading melanoma (80%)

Nodular melanoma

Lentigo maligna melanoma

Acral lentiginous melanoma

7

In which age group is melanoma most common?

15-44

4th Most common cancer in Australia in males and females

8

When is sentinel LN biopsy indicated?

>1mm thick 

9

How do you biopsy a mole?

Biopsy with 2mm margin

Orientation the excision along the long axis on extremities or along the lines of relaxed skin tension

 

10

What are some prognostic factors for melanoma?

Regional spread

Breslow's thickness

Clark's level

Ulceration

Mitotic count (no. mitosis per mm2)

Anatomical site

Age/Sex

11

What is neurotropism?

Travel along the nerve

12

How is T in TNM staging determined?

Depth 

+/- Ulceration

13

Where do you commonly find melanomas in males and females?

Males - Trunk, head and neck

Females - Legs

14

What are some symptoms of melanoma?

Change in size, colour, shape or border

Pain

Itch

Bleeding

15

What is the challenged with nodular melanoma?

Rapidly growing 

Invade early

Majority are amelanotic

16

What is the best biopsy technique for pigmented lesions?

Excision biopsy

17

When should a sentinal node biopsy be taken?

If the lesion is >1mm thick

18