Chapter 8: Skin Surgery Flashcards

1
Q

Incidence of different types of skin cancer:

A
  1. basal cell: 50%
  2. SCC: 25%
  3. Melanoma: 15%
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How do you diagnose different cancers?

A
  1. full-thickness incisional or punch biopsy at edge of lesion (including normal skin)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Basal cell carcinoma description?

A
  1. waxy, raised lesion or non-healing ulcer
  2. prefers upper part of face (above line drawn across lips)
  3. doesn’t metastasize but signif local damage
    Tx: local excision w negative margins (1mm) is curative
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Squamous cell carcinoma description?

A
  1. non-healing ulcer that has a preference for the lower lip and territories below a line draw across the lips
  2. can metastasize to lymph nodes
    Tx: excision has WIDER margins (0.5-2 cm) compared to bcc. Node dissection is also done and radiation therapy is another option.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Melanoma description?

A
1. pigmented lesion
Asymmetric 
Borders irregular
Color (different colors) w/i lesion
Diameter (exceeds 0.5 cm) 
Evolution (changes--i.e. gets bigger, ulcerates, changes color or shape, bleeds)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Prognosis of skin lesions by depth:

A
  1. less than 1 mm deep: good prognosis, only local excision
  2. deeper lesions: wider margins with excision (2-3cms)
  3. lesions deeper than 4mm have a very poor prognosis
  4. lesions between 1-4 cm–> do aggressive therapy including node dissection
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Places that malignant melanoma metastasizes?

A

Weird places;

  1. muscle of left ventricle
  2. wall of duodenum
  3. anywhere!
Conventional places;
lymph nodes
liver
lung
brain
bone
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Natual history of malignant melanoma?

A

no predictable timeline!

months-decades bw diagnosis and metastasis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What’s the preferred adjuvant systemic therapy for metastatic melanoma?

A

interferon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly