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Question 1

Dermatophyte

Answer 1

Fungi that invade keratin of skin, hair, nails

produce keritinase

Question 2

tinea barbae

Answer 2

Beard

Question 3

tinea capitis

Answer 3

head

Question 4

tinea corporis

Answer 4

torso

Question 5

tinea cruris

Answer 5

groin

Question 6

tinea manus

Answer 6

hand

Question 7

tinea pedis

Answer 7

foot

Question 8

tinea unguium

Answer 8

nail

Question 9

Culture of dermatophytes (location of sample, agar, results)

Answer 9

Sample taken from under nail is best

• Sabouraud Agar (1-4wks)
• Dermatophyte Test Medium (used for early detection, does not give species, just confirms dermatophyte present)

Question 10

Some _______ species of dermatophytes fluoresce?

Answer 10

Microsporum

Question 11

Infective Stage of Dermatophytosis

Answer 11

Athroconidium (micro or macro)

Question 12

Diagnostic Stage of Dermatophytosis

Answer 12

Athroconidium (micro or macro)

Question 13

Transmission of dermatophytosis

Answer 13

Athrospore spread via person to person contact or fomites

Question 14

Zoophilic

Answer 14

Animal pathogen transmitted to people

Question 15

Athrophophilic

Answer 15

Human to human transmission of fungi

Question 16

Geophilic

Answer 16

Soil to human transmission of fungi

Question 17

Tinea capitis most common in ________?

Answer 17

Children

Question 18

Tinea pedis most common in ________?

Answer 18

Adults

Question 19

Tinea unguium most common in ________?

Answer 19

Males

Question 20

Dermatophytes most common in _______ regions of world?

Answer 20

Tropical & subtropical because of humidity

Question 21

Dermatophyte Lesion (Describe)

Answer 21

Lesion with inflammed edge & central clearing
Hair loss
Pruritius
(Dissemination possible in HIV+)

Question 22

Risk Factors for Dermatophytosis

Answer 22

Immunocomp.
Communal Baths (hot tubs)
Athletics (wrestling, etc)
Cushing Syndrome (inc. cortisol inh. immune response)

Question 23

Dermatophytid

Answer 23

Hypersensitivity rxn to fungal antigens at distal sight.
Common in tinea pedis
Result of over treatment

Question 24

Antifungals target?

Answer 24

Ergosterol in cell membrane

Question 25

Causative Agents of Tinea Barbae

Answer 25

Trichophyon rubrum Trichophyon mentagrophytes Trichophyon verrucosum

Question 26

Causative Agents of Tinea Capitis

Answer 26

Microsporum canis Trichophyton mentagrophytes Trichophyton tonsurans

Question 27

Most common tinea capitis agent in USA and trx

Answer 27

Trichophyton tonsurans | Griseofulvin

Question 28

Causative Agents of Tinea Corporis

Answer 28

Microsporum canis Trichophyton rubrum (most important) Trichophyton mentagrophytes

Question 29

Causative Agents of Tinea Cruris

Answer 29

Epidermophyton floccosum Trichophyton rubrum (most important) Trichophyton mentagrophytes

Question 30

Causative Agents of Tinea Manus

Answer 30

Trichophyton rubrum | Trichophyton mentagrophytes

Question 31

Causative Agents of Tinea Pedis

Answer 31

Epidermophyton floccosum Trichophyton rubrum (most common) Trichophyton mentagrophytes

Question 32

Most prevalent dermatophytosis

Answer 32

Tinea pedis - Trichophyton rubrum

Question 33

Causative Agents of Tinea Unguium

Answer 33

Epidermophyton floccosum Trichophyton rubrum Trichophyton mentagrophytes

Question 34

Subcutaneous Fungus Genera

Answer 34

Fusarium Sporothrix Modurella Pseudoallescheria

Question 35

Sporothirx schenckii (Sporotrichosis) causes

Answer 35

Chronic granulomas & necrosis | ulcerative lesions

Question 36

Sporotrichosis DOC

Answer 36

Itraconazole or Amphotericin B

Question 37

Sporothrix infects and is associated with?

Answer 37

lymphatics

Question 38

Most common way to get infected with sporothrix?

Answer 38

stuck/punture wound while working in garden

Question 39

Sporothrix found where?

Answer 39

Environmental, soil

Question 40

Appearance of sporothrix conidia?

Answer 40

Daisies