Name that Skin Neoplasm

Question 1

Answer 1

Seborrheic Keratosis

Round plaques that look stuck on

Horn cysts of Keratin

Question 2

Answer 2

Actinic Keratosis

Pre-malignant

Solar Exposure

Can PROGRESS to SCC or regress

Should be excised due to cancer risk

Question 3

Answer 3

Actinic Keratosis

Atypia in lower levels of epidermis with basal cell hyperplasia

Solar elastosis

Question 4

Answer 4

SCC

Raised, Scaling, or Ulcerating Plaques

Full-Thickness Atypia at all epithelial layers

Dyskeratosis

Invasion through Basement membrane

Question 5

Answer 5

SCC in Situ

Atypical cells have not yet penetrated the basement membrane

Question 6

Answer 6

SCC: Invasive

Cells have penetrated the basement membrane into the underlying dermis

Question 7

Answer 7

Gorlin Syndrome

Nevoid basal cell carcinoma syndrome

Dysregulation of Hedgehog signaling pathway

Presents:

Multiple BCCs

Keratocytic odotogenic tumors of jaw

Palmar Pits

Question 8

Answer 8

BCC

Low risk of metastasis

Many atypical cells, but not full thickness like SCC and the basement membrane is not compromised

Question 9

Answer 9

Junctional Nevus

Question 10

Answer 10

Compound Nevus

Question 11

Answer 11

Intradermal Nevus

Question 12

Answer 12

Junctional Nevus

Question 13

Answer 13

Compound Nevus

Question 14

Answer 14

Intradermal Nevus

Question 15

Answer 15

Dysplastic Nevus

Non sun exposed areas

Rare for an atypical nevus to transorm but they put patient at risk for melanomas

Most melanomas are de novo

Question 16

Answer 16

Melanoma

Usually older patients but avg. age dropping due to sun exposure and tanning and/or increased surveillance

Cured surgically but can be deadly due to metastatic potential

Question 17

Answer 17

Melanoma

Question 18

Answer 18

Melanoma in situ

Intact basement membrane