Management of Dysplastic Naevi not in 3rd Ed Flashcards Preview

Surgical MCQs > Management of Dysplastic Naevi not in 3rd Ed > Flashcards

Flashcards in Management of Dysplastic Naevi not in 3rd Ed Deck (28):
1

The total number of melanocytic naevi and the presence of atypical moles are independent risk factors for the development of melanoma.

T

2

Most melanomas arise within dysplastic naevi.

F De novo.

3

Dysplastic naevi rarely occur on the chronic sun-exposed skin of the face or hands.

T

4

7% of Caucasians have clinically atypical (dysplastic) naevi.

T

5

Patients with >100 uniform small naevi are not at increased risk of melanoma.

F “Cheetah phenotype” – increased risk

6

Dysplastic naevus / atypical mole syndrome can occur sporadically or be inherited.

T

7

Unlike persons with common naevi, it is not unusual for persons with atypical naevi to continue to develop new lesions throughout life.

T

8

‘Classical’ atypical mole syndrome is characterised by having: >100 melanocytic naevi, 1/more naevi with atypical features, and 1/more naevi >8mm diameter.

T

9

Individuals with dysplastic naevi who have at least one blood relative with melanoma have a lifetime risk of developing melanoma of greater than 80%.

F At least two blood relatives.

10

Removal of all dysplastic naevi in a patient eliminates the risk of developing melanoma.

F Most arise de novo.

11

A wood’s lamp can help visualise areas of naevus regression by highlighting depigmented areas.

T

12

Proposed surgical margin for in situ melanoma is 10mm.

F 5mm

13

Proposed surgical margin for less than or equal to 1.0mm thick melanoma is 10mm.

T

14

Proposed surgical margin for 1.0-2.0mm thick melanoma is 10mm.

F 10-20mm.

15

Proposed surgical margin for 2.01-4.0 mm thick melanoma is 20mm.

T

16

Proposed surgical margin for >4mm thick melanoma is 20mm.

T

17

Sentinel lymph node biopsies provide a survival advantage.

F Only provides prognostic information.

18

The incidence of a second primary melanoma is 25% in patients with a history of melanoma.

F 0.2-8.6%.

19

Risk factors that increase the chance of developing new primary melanoma(s) include male sex, older age, having atypical moles, family history of melanoma, and family history of atypical moles.

T

20

A focused review of systems aimed at pts with melanoma should include queries about weight loss, fatigue, headache, numbness, dizziness, SOB, cough, abdo pain and bone pain.

T

21

The first site of metastasis is most commonly the skin and subcutaneous tissue, followed by lymph nodes, lung, liver, brain and bone.

T

22

The greatest risk of recurrence of melanoma is in the first 10 years following the diagnosis.

F First 1-5 years.

23

The time to recurrence for patients with node-negative disease varies inversely with the thickness of the primary tumour.

T Thin melanomas can potentially recur many years after the initial diagnosis.

24

Regarding melanoma, men and older pts have a worse Px than women and younger pts.

T

25

Predictive factors for regional node metastasis include increasing tumour thickness, presence of ulceration, high mitotic index, lymphovascular invasion and Clark level greater than III.

T

26

Dysplastic naevi have increased recurrence rates

F 2014 questions – Dan added – this is how the question was remembered. I think false

27

Ophthalmology review is necessary in dysplastic naevus syndrome

F 2014 questions – Dan added

28

Dysplastic naevus syndrome patients have increased risk of melanoma

T 2014 questions – Dan added