Cutaneous And Subcutaneous Mycoses Flashcards
(112 cards)
1
Q
Affect keratinized tissues
A
Cutaneous mycoses
2
Q
Dermatophytes (keratinophilic)
A
Microsporon
Epidermophyton
Trichophyton
3
Q
Causes ringworm/tinea
A
Dermatophytes (keratinophilic)
4
Q
Ring-like appearance, red and scaly with a distinct margin, cordlike bumps beneath the skin fesembling a worm.
A
Tinea / Ringworm
5
Q
Dermatophytes
A
Microsporum
Trichophyton
Epidermophyton
6
Q
Microsporum infects
A
Skin, hair and rarely nails
7
Q
Large, spindle pr cylinder shaped, thick walled, multi-septate, rough, spiny
A
Microsporum MACROconidia
8
Q
Few or absent small, club shaped
A
Microsporum MICROconidia
9
Q
Microsporum spp.
A
Microsporum audouinii
Microsporum canis
Microsporum gypseum
10
Q
Anthrophilic
A
Microsporum auduoinii
11
Q
Fluoresces under woods light (M. audouinii) color
A
Microsporum audouinii (yellow green)
12
Q
Rice medium negative
A
Microsporum auduoinii
13
Q
Salmon colored colonies
A
Microsporum audouinii
14
Q
Fluoresces under woods light (M.canis) color
A
Bright yellow
15
Q
Rice medium positive
A
Microsporum canis
16
Q
Geophilic
A
Microsporum gypseum
17
Q
No fluorescence
A
Microsporum gypseum
18
Q
Rice medium positive
A
M. Canis
M. Gypseum
19
Q
Cinnamon colored colonies
A
Microsporum gypseum
20
Q
Trichophyton infects
A
Skin, hair, nails
21
Q
Rare
Pencil shaped, multi-septate, thin walled, smooth borne singly on conidiophore
A
Tichophyton MACROconidia
22
Q
Predominant
Spherical, tear shaped or clavate
A
Trichophyton MICROconidia
23
Q
Trichophyton spp.
A
Trichophyton mentagrophytes
Trichophyton rubrum
Trichophyton tonsurans
24
Q
Rose or epred-brown underside
A
Trichophyton mentagrophytes
25
Urease positive
Trichophyton mentagrophytes
26
Perforates hair
Trichophyton mentagrophytes
27
Star-shaped powder colonies
Trichophyton mentagrophytes
28
Microconidia in grapelike clusters
Trichophyton mentagrophytes
29
Deep cherry red or burgundy underside (enhanced on cornmeal or potato dextrose agar)
Trichophyton rubrum
30
Urease negative
Trichophyton rubrum
31
Does not perforate hair
Trichophyton rubrum
32
Tear shaped microconidia
Trichophyton rubrum
33
Tan or yellow rose with crater-like folds and wrinkled centers
Trichophyton tonsurans
34
Balloon shaped microconidia
Trichophyton tonsurans
35
Epidermophyton infects
Skin, nails, rarely hair
36
Club shaped, septate, thin-walled, smooth
Epidermophyton MACROconidia
37
Borne in slingles or cluster of 2-3 conidiophore
Epidermophyton MACROconidia
38
Absent
Epidermophyton MICROconidia
39
Epidermophyton spp.
Epidermophyton floccosum
40
Khaki colored colonies
Epidermophyton floccosum
41
affect deep layers of the skin, organisms found in soil thus feet usually affected, often result from a traumatic skin puncture from thorns or vegetation contaminated with fungi which are usually dematiaceous (darkly pigmented)
Subcutaneous mycoses
42
Fonsecaea pedrosoi
Fonsacaea compactum
Philaophora verrucosa
Cladosporium carrioniii
Exophiala jeanselmi
Exophioala spinifera
Wangiella dermatitidis
43
Chronic, non-healing, hard, warty, tumor-like lesions
Chromoblastomycosis
44
Characterized by cauliflower like lesions with SCLEROTIC BODIES" (copper-colored, septate cells)
Chromoblastomycosis
45
Chromoblastomycosis Characterized by cauliflower like lesions with
Sclerotic bodies
46
Chromoblastomycosis
Types of (Sporulations)
Acrotheca
Phialaphora
Cladosporium
47
Conidia in side
ACROTHECA:
48
Conidia in cluster
PHIALAPHORA:
49
CLADOSPORIUM
Conidia in chain
50
Mixed sporation
Fonsecaea
51
Phialaphora sporulation only
Phialaphora
52
cladosporium only Chromoblastomycosis
Cladosporium
53
Subcutaneous spp
Chromoblastomycosis
Phaeohyphomycosis
Mycetoma
Sporotrichosis or rose gardeners disease
54
Phaeohyphomycosis other term
Alternaria, Bipolaris, Curvularia, Dreschlera, Exophiala, Phialaphora, Wangiella
55
Opportunistic infections in subcutaneous
Phaeohyphomycosis
56
Chronic granulomatous infection of the cutaneous and subcutaneous tissue and bone
Mycetoma
57
Tumor-like deformities, abscesses, draining sinuses, granulomatous
Mycetoma
58
Actinomycotic mycetoma:
Nocardia, Actinomadura, Streptomyces
59
Eumycotic mycetoma:
Pseudoallescheria, Aspergillus, Exophiala, Acremonium, Curvularia, Madurella
60
Sporothrix or
Rose garderners disease
61
Sporotrichosis or Rose Gardener's Disease
Caused by
Sporothrix schenkii
62
Dimorphic fungus in subcutaneous
Sporothrix schenkii
63
Sporotrichosis mold and yeast form
Mold form: narrow, septate hyphae with pyriform conidia arranged singly or in Flowerette arrangement
Yeast form: small, elliptoid budding, cigarette - shaped cells
64
Colonies become _______ (enhanced on potato dextrose or cornmeal agar), wrinkled and leathery with age
Black
65
Colonies become black (enhanced on potato dextrose or cornmeal agar), wrinkled and leathery with age
Sporotrichosis
66
Usually infects farmers or florists
Introduced by trauma, usually to hand
Sporotrichosis or Rose Gardener's Disease
67
Types of tinea
Tinea capitis
Tinea barbae
Tinea corporis
Tinea crusis (jock itch)
Tinea Pedis (athletes foot
Tinea unguinum (Onchomycosis)
68
scalp, eyebrows, and eyelashes
Tinea capitis
69
smooth or glabrous skin (trunk)
Tinea corporis
70
beard
Tinea barbae
71
groin
Tinea Crusis (jock itch)
72
Foot
Tinea pedis
73
Nais
Tine unguium
74
affects the hair and skin
Microsporum
75
affects the skin and nails
Epidermophyton
76
affects the hair, skin, and nails
Trichophyton
77
Growth on rice medium
M. Canis
M. Gypseum
78
Woods lamp fluorescence
M. Canis
M.auduoinii
79
Abundant Red pigment
Trichophyton rubrum
80
Positive in hair baiting test
Trichophyton mentagrophytes (v shaped penetration)
81
“balloon-forms” aged microconidia; requires thiamine
Trichophyton tonsurans
82
Trichophyton schoenleinii:
favic chandelier; favus tinea capitis
83
Macroconidia: rare, 3-5 cells, thin- walled, “rat-tail”
Trichophyton verrucosum
84
Favic chandeliers and chlamydospores are common
Trichophyton schoenleinii
85
Swollen hyphae containing cytoplasmic granules
Trichophyton violaceum
86
What kind of fungus Sporotrichosis? Morphology in yeast and mold form
Dimorphic
rosette/flowerette/daisy petal conidia
cigar- shaped
87
Established infections appear as multiple, large, warty,
Chromoblastomycosis
88
- Development of slow- growing verrucous nodules plaques
Chromoblastomycosis
89
What kind of mold chromoblastomycosis
Dermatiaceous mold
90
Chromoblastomycosis in tissue
In tissue: forms muriform cells (sclerotic bodies/Medler bodies) that are chestnut brown (copper pennies/black granule
91
formation of abscesses that contain large aggregates of fungal hyphae known as granules or grains
Mycetoma
92
Localized, chronic, granulomatous infections
Mycetoma
93
Fungus-Like Bacteria
Actinomycotic
94
composed of branching filaments, Gram-positive beaded rods
Granules (actinomycotic)
95
composed of septate fungal hyphae either hyaline or dematiaceous; PAS and GMS positive
Granules (eumycotic)
96
Subcutaneous Mucormycosis other name
Entomophthoromycosis
97
from traumatic implantation of the fungus present in plant debris
Subcutaneous Mucormycosis (Entomophthoromycosis)
98
Conidiobolus coronatus
(localized to the facial area mostly in adults)
99
Basidiobolus ranarum
(proximal limbs in children)
100
Hyphal fragments surrounded by intensely eosinophilic Splendore-Hoeppli material
Subcutaneous Mucormycosis (Entomophthoromycosis)
101
Hyphal fragments are thin walled and poorly staining.
Subcutaneous Mucormycosis (Entomophthoromycosis)
102
Require biopsy; histopathologic pictures are marked by focal clusters of inflammation with eosinophils and typical mucormycotic hyphae often surrounded
by eosinophilic Splendore-Hoeppli material.
Subcutaneous Mucormycosis (Entomophthoromycosis)
103
rare infection caused by dematiaceous saprobes
which invade organs (skin, lungs, brain) of immunosuppressed hosts
Phaeohyphomycosis
104
Phaeohyphomycosis
Cell wall pigmentation ranges from light to dark and may require special stains, such as the
Fontana-Masson melanin stain
105
Black molds in culture
Phaeohyphomycosis
106
Sporotrichosis causitive agent
Sporothrix schenckii
107
Chromoblastomycosis causative agent
Fonsecaea (mixed sporulation)
Cladosporium (only cladosporium sporulation) Exophiala Cladophialophora
Rhinocladiella
Phialophora (only phialophora sporulation)
108
Mycetoma causitive agent
Eumycotic
Exophiala
Phaeoacremonium
Curvularia
Fusarium
Madurella
Pyrenochaeta
Leptosphaeria
Scedosporium
Pseudallescheria boydii (most common)
Actinomycotic (Fungus-Like Bacteria)
Actinomyces
Nocardia
109
Known as true fungi
Eumycotic
110
most common mycetoma causative agent
Pseudallescheria boydii
111
Subcutaneous Mucormycosis (Entomophthoromycosis) causative agent
Conidiobolus coronatus
Basidiobolus ranarum
112
Phaeohyphomycosis causative agent
Exophiala jeanselmei
Wangiella dermatitidis
Bipolaris spp.
Alternaria spp.
Chaetomium spp.
Curvularia spp.
Phialophora spp. among others
