Fungal

Question 1

Describe generalized cutaneous candidiasis

Answer 1

• unusual, diffuse eruptions over the trunk, thorax and extremities
• pruritis

Question 2

Where is generalized cutaneous candidiasis located?

Answer 2

• genitocrural folds
• anal region
• axillae
• hands
• feet

Question 3

Describe intertrigo

Answer 3

• vesiculopustules in intertriginous areas
• maceration & fissuring
• satalite lesion

Question 4

What is a causative activity for paronychia and onychomycosis?

Answer 4

• immersion of the hands in water

- DM

Question 5

What is the treatmen for Candidiasis?

Answer 5

• azole antifungals
• glucan synthesis inhibitors
• polyenes
• allylamines

Question 6

tinea capitis

Answer 6

• scalp

Question 7

tinea corporis

Answer 7

• trunk

- extremities

Question 8

ringworm

Answer 8

• tinea corporis

Question 9

tinea manuum

Answer 9

• hands

Question 10

tinea pedis

Answer 10

• ‘athletes foot’

Question 11

What is a ddx of tinea pedis and how do you tell the difference?

Answer 11

• contact dermatitis does not involve area between toes

Question 12

tinea cruris

Answer 12

• groin

- ‘jock itch’

Question 13

tinea barbae

Answer 13

• beard

- neck

Question 14

tinea faciale

Answer 14

• face

Question 15

tinea unguium

Answer 15

• nail

- ‘onychomycosis’

Question 16

ectothrix

Answer 16

• conida form on the exterior of the hair shaft

- hair is destroyed

Question 17

What are the two types of ectothrix?

Answer 17

• green/yellow fluorescence

- nonlfuroescent

Question 18

What are green/yellow fluroecent ectothrix?

Answer 18

• Microsporum species

Question 19

What are the non fluorescent ectothrix?

Answer 19

• Trichophyton species

Question 20

endothrix

Answer 20

• conida form within the hair shaft
• shaft filled with hyphae and spores
• hair is not affected or destroyed

Question 21

What type of species is an endothrix?

Answer 21

• non fluorescent

- Trichophyton

Question 22

kerion

Answer 22

• thick plaques and boggy skin

- Microsporum canis

Question 23

What can be odd presentation with tinea?

Answer 23

• Id reaction

- tinea incognito

Question 24

What is tinea incognito?

Answer 24

• result of a prior treatment with hydrocortisone causing atypical appearance

Question 25

How is tinea diagnosed?

Answer 25

• direct microscopic exam
• fungal cultures
• UV light

Question 26

What is the treatment for tinea corporis?

Answer 26

• topical agents

Question 27

What is the treatment for tinea capitis and nail infections?

Answer 27

• oral antifungals

Question 28

What causes tinea versicolor?

Answer 28

• Malassezia furfur

- yeast

Question 29

How does tinea versicolor present?

Answer 29

• hypo or hyperpigmentated macules that do not tan

Question 30

What is the treatment for tinea versicolor?

Answer 30

• selenium sulfide shampoo 15min x 7d

- ketoconazole 1 po and no shower for 18 hrs

Question 31

How do onychomycosis present?

Answer 31

• hyperkeratosis

- yellow-white or white

Question 32

How is onychomycosis diagnosed?

Answer 32

• direct microscopy with 20% KOH
• cultures
• PCR
• dermoscopy

Question 33

What is the treatment of onychomycosis?

Answer 33

• oral antifungals