Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

MYCOLOGY - VIROLOGY > Superficial And Cutaenous > Flashcards

Superficial And Cutaenous Flashcards

(75 cards)

Start Studying
1
Q

This includes the dermis and first layer of epidermis

A

Superficial

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

What are the layers of epidermis?

A 
Stratum corneum
Stratum lucidum
Stratum granulosum
Stratum spinosum
Stratum basale / germinativum
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Group of fungal spp producing cutaenous infections

A

Dermatophytes

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

Mode of transmission that is only pathogenic to humans

A

Anthrophilic

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

Mode of transmission that is pathogenic on animals

A

Zoophilic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Mode of transmission with contact of free living soil that are saprobic

A

Geophilic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Dermatophyte infection of the hair that remains confined to the hair surface

A

Ectothrix / exothrix

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Infection of hair that invade the hair shaft and internalize into the hair cell

A

Endothrix

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

Type of mycoses seen in first layer of epidermis particularly in stratum corneum, essentially elicit no inflammation, Easily diagnosed and treated

A

Superficial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Type of mycoses seen in the superficial and whole epidermis

A

Cutaenous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Type of mycoses that can spread in the entire body and cause diseases in organs

A

Systemic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Type of mycoses which cannot produce dses but can affect immunocompromised people

A

Opportunistic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Disease which can cause discoloration or depigmentation of skin
Lyophilic
Seen in warm / tropic environments
Anthrophilic infxn
Direct or indirect transfer of keratinous material

A

Tinea versicolor or Pityriasis versicolor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Causative agent of Tinea versicolor
Clusters of spherical, yeast like cells w/ hyphal fragments
Spaghetti and meatball appearance
Fluoreces under woods light

A

Malassezia furfur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Malassezia furfur culture requirements?

Appearance?

A

SDA w/ olive oil
Incubate 2-4 days at 30*C

Creamy yeast-like colonies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Treatment on Malassezia furfur?

A

1% of selenium sulfide applied every other day for 15 mins then wash

Ketoconazole or miconazole medicated shampoos

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Tropical infxn involves the palms and soles and result to black and brown salty patches
Most common in children and young adults
You can get by inoculation or trauma into epidermis

A

Tinea nigra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Causative agent of Tinea nigra

A

Exophiala werneckii

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Exophiala werneckii is formerly called?

A

Cladosporium werneckii

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Microscopic appearance of Exophiala werneckii

A

Branched septated hyphae w/ 1-2 celled blastoconidia(budding)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Culture req of Exophiala werneckii

A

SDA ( Saboraud’s dextrose agar) at RT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Culture appearance of Exophiala werneckii

A

Black yeasty colonies w/ an olive green mycelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Treatment of Exophiala werneckii

A

Anti fungal miconazole / econazole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Hard, brown black crusts on the outside of the hair shaft

Seen in tropical america and africa

A

Black piedra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Causative agent for black piedra
Piedraia hortae
26
Microscopic appearance of Piedraia hortae
Thick walled hyphae with ascospores
27
Culture req of Piedraia hortae
SDA at RT
28
Culture appearance of Piedraia hortae
Green black heaped colonies
29
Treatment of Piedraia hortae
Oral terbinafine 250 mg daily for 3 weeks
30
Light brown soft nodules on scalp hair, beard or mustache that are less firmly attached than black piedra Seen in tropical and subtropical areas Associated with poor hygienne
White piedra
31
Causative agent for white piedra
Trichosporon beigelii
32
Microscopic appearance of Trichosporon beigelii
Hyaline hyphae, blastoconidia and arthrospores
33
Culture req of Trichosporon beigelii
SDA at RT
34
Culture appearance of Trichosporon beigelii
Siopao; cream colored wrinkled colonies
35
Treatment of Trichosporon beigelii
Therapy of high dose Amphotericin B w/ either flucytosine or fluconazole
36
Ringworm of the beard
Tinea barbae
37
This includes the superficial up to the whole epidermis
Cutaenous
37
Ringworm of scalp
Tinea capitis
38
Ringworm of body | Scaly center surrounded by red advancing border that often contains vesicles
Tinea corporis
39
Ringworm of groin
Tinea cruris
40
Ringworm of foot (athlete's foot) | Characterized by itching, scales and possible seeping
Tinea pedis
41
Tinea pedis is commonly caused by what organism?
Trichophyton mentagrophytes
43
Fungal infxn of a nail that is caused by a non-dermatophyte
Onychomycosis
44
Ringworm of nails becoming thick and brittle | Fungal infxn of a nail that is caused by a dermatophyte
Tinea unguium
45
Type of tinea capitis Common in children Caused by Microsporum canis and Microsporum audouinii
Gray patch ringworm
46
Type of tinea capitis An endothrix infxn Caused by Trichophyton tonsurans
Black dot ringworm
47
Type of tinea capitis An Ectothrix infxn Caused by Trichophyton mentagrophytes
Inflammatory
49
Means "moth-like" or "ring-worm"
Tinea
50
``` Infect hair and skin but rarely nails Spindle shaped Macroconidia Rare microconidia Produce powdery or velvety colonies Produce fluoresces under woods light ```
Microsporum
51
Spindle shaped Multi septate with rough surface macroconidia Has terminal chlamydospores Fails to grow on sterile, rice grains
Microsporum audouinii
52
Produced infection of Microsporum audouinii?
Tinea capitis and Tinea corporis
53
Culture appearance of Microsporum audouinii?
Cream, tan, light brown velvety colony | Reverse side: Salmon pink or orange brown
54
Spindle shaped Curved tip and knobby projections Macroconidia It is zoophilic
Microsporum canis
55
Produced infection of microsporum canis?
Tinea capitis and Tinea corporis
56
Culture appearance of Microsporum canis
Bright yellow periphery
57
Cigar shaped w/ spiny surfaces and rounded tips | It is Geophilic
Microsporum gypseum
58
Produced infections of Microsporum gypseum?
Tinea canis, Tinea corporis, Tinea unguium
59
Culture appearance of Microsporum gypseum?
Cinnamon brown, rose brown, red brown
60
``` Hair, skin and nails are affected Tear shaped Microconidia Rare macroconidia (smooth) - Pencil shaped Powdery, velvety or waxy colonies Do not fluoresce under woods light ```
Trichophyton
61
Micospores/microconidia arranged in grape-like structures Hyphae is coiled and spiral (+) urease (+) hair baiting test - ectothrix
Trichophyton mentagrophytes
62
Produced infections of Trichophyton mentagrophytes
Tinea barbae, tinea corporis, tinea pedis, tinea unguium
63
Culture appearance of Trichophyton mentagrophytes
White or tan to pink
64
Tear shaped microconidia borne laterally prom long strands of hyphae Pencil shaped macroconidia (-) urease (-) hair baiting test
Trichophyton rubrum
65
Produced infections of Trichophyton rubrum
Tinea capitis, tinea corporis, tinea unguium
66
Culture appearance of Trichophyton rubrum
Cherry red or wine red in corn meal agar
67
Balloon shaped microconidia Requires thiamine to grow Endothrix infection
Trichophyton tonsurans
68
Produced infections of Trichophyton tonsurans
Tinea capitis, corporis, pedis, unguium
69
Culture appearance of Trichophyton tonsurans
Yellow rose or rust colored colony | Colonies become heaped and sunken
70
Skin and nails, never hair Club shape Monotypic genus with 1-5 cell Macroconidia Absent microconidia
Epidermophyton
71
Club shaped macroconidia | Absent microconidia
Epidermophyton floccosum
72
Produced infections of Epidermophyton floccosum
Tinea corporis and tinea pedis
73
Culture appearance of Epidermophyton floccosum
Volcano with crater; khaki green | Flat suede like structure w/ folded center
74
Treatment of scalp infxn
Griseofulvin given 1-2 weeks
75
Treatment of body infxn
Miconazole cream, salicylic cream/ benzoic acid
76
Treatment of foot infxn
Acute: soak in potassium lermanganate 1:5000j Chronic: antifungal agents (creams) at night

MYCOLOGY - VIROLOGY (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions