Dermatology - Seborrheic Keratosis

Question 1

Multiple, oval, slightly raised, light brown to black, sharply demarcated papules or plaques

Answer 1

Seborrheic keratosis

Question 2

Seborrheic keratosis is rarely >___ cm in diameter

Answer 2

> 3 cm

Question 3

Appear stuck on skin, as if they could be removed with a flick of a fingernail

Answer 3

Seborrheic keratosis

Question 4

Cutaneous tag, papilloma colli, fibroma pendulum, cutaneous papilloma, fibroma molluscum, Templeton skin tags, skin tags

Answer 4

Achrochordon

Question 5

Kuntil

Answer 5

Achrochordon

Question 6

Fibrous histiocytoma

Answer 6

Dermatofibroma

Question 7

Firm, irregularly shaped, fibrous, hyperpigmented, pink or red excrescence

Answer 7

Keloid

Question 8

Claw like projections

Answer 8

Keloid

Question 9

No claw like projections

Answer 9

Hypertrophic scar

Question 10

Extensijon of the lesion beyond the confines of the original injury

Answer 10

Keloid

Question 11

No spontaneous improvement

Answer 11

Keloid

Question 12

Does not extend beyond the original wound

Answer 12

Hypertrophic scar

Question 13

Low grade squamous cell carcinoma

Answer 13

Keratoacanthoma

Question 14

Rapidly growing papule that enlarges from a 1 mm macule or papule to as large as 25 mm in 3-8 weeks

Answer 14

Solitary keratoacanthoma

Question 15

Epidermal inclusion cyst, infundibular cyst, keratin cyst, sebaceous cyst

Answer 15

Epidermal cyst

Question 16

Senile sebaceous hyperplasia, senile sebaceous adenoma

Answer 16

Sebaceous hyperplasia

Question 17

Age of onset

Sebaceous hyperplasia

Answer 17

Usually past 40 yo

Question 18

Very common neoplasms demonstrating sweat duct differentiation

Answer 18

Syringioma

Question 19

keratoacanthoma

multiple lesion extendin gfrom the original central lesion

Answer 19

Coral-reef keratoacanthoma

Question 20

Generalized eruptive keratoacanthomas

Answer 20

Grzybowski variant

Question 21

Tx for grzybowski variant keratoacanthomas

Answer 21

Oral retinoids
Oral methotrexate
Oral cyclophosphamide

Question 22

Progressive peripheral expansion and concomitant central healing, leaving atrophy

Type of keratoacanthoma

Answer 22

Keratoacanthoma centrifugum marginatum

Question 23

One of the most common benign skin tumors

Answer 23

Epidermal cyst

Question 24

Common site of epidermal cyst

Answer 24

Face
Neck
Trunk

Question 25

Sites commonly affected by syringioma

Answer 25

Eyelids and upper cheeks

Question 26

Sites rarely affected by syringioma

Answer 26

``` Rare on axilla Abdomen Forehead Penis Vulva ```

Question 27

Syringioma occurs in 15% of adults with

Answer 27

Down syndrome, particularly females

Question 28

Dilated sweat ducts, some have comma-like tails resembling tadpoles or pattern of a paisley tie

Answer 28

Syringioma

Question 29

Probably represent adenomas of intradermal eccrine ducts

Answer 29

Syringioma

Question 30

Tx syringioma

Answer 30

Electrodessication Shave removal Carbon dioxide laster tx by pinhold method or fractional thermolysis Cryotherapy