MYCOVIRO - CH 61 book Flashcards

(57 cards)

1
Q

agents of superficial and subcutaneous mycoses

A

Dematiaceous (Melanized) Molds

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2
Q

Found everywhere (ubiquitous) and saprophytic

A

Dematiaceous (Melanized) Molds

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3
Q

nutrition of melanized mold

A

saprophytic nutrition

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4
Q

exist as plant pathogens

A

Dematiaceous (Melanized) Molds

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5
Q

Produce melanin resulting observable dark coloration

A

Dematiaceous (Melanized) Molds

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6
Q

CA of tinea nigra

A

Hortaea werneckii

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7
Q

superficial infection manifested by macular patches on the palm of the hand or sole of the foot

A

tinea nigra

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8
Q

superficial infection in which

Skin lesions are stained with silver nitrate staining

A

tinea nigra

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9
Q

skin lesions of tinea nigra are stained with

A

silver nitrate staining

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10
Q

CA of black piedra

A

Piedraia hortae

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11
Q

Infection of the hair, scalp and occasionally the axillary and pubic hair

A

black piedra

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12
Q

superficial infection known as Madura Foot

A

mycetoma

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13
Q

other name of mycetoma

A

madura foot

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14
Q

Chronic, granulomatous infection usually involving the lower extremities

A

mycetoma

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15
Q

mycetoma involves what body part

A

lower extremities

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16
Q

black piedra infects what body part (4)

A

hair, scalp and occasionally the axillary and pubic hair

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17
Q

white piedra infects what body part

A

palm of the hand or sole of the foot

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18
Q

mycetoma characterized by (3)

A
  1. swelling
  2. purplish discoloration
  3. Tumorlike deformities of the subcutaneous tissue and multiple sinus tracts that drain pus
    containing yellow, white, red, or black granules (depends on infecting organism
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19
Q

2 types of mycetoma

A

actinomycotic

eumycotic

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20
Q

mycetoma caused by aerobic actinomycetes (Nocardia, Actinomadura and Streptomyces spp.)

A

Actinomycotic (bacterial) mycetoma

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21
Q

CA of Actinomycotic (bacterial) mycetoma (3)

A

Nocardia
Actinomadura
Streptomyces

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22
Q

Subcategories of eumycotic mycetoma

A

white grain mycetoma

black grain mycetoma

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23
Q

mycetoma caused by heterogeneous group of fungi that have septated hyphae

A

Eumycotic (fungal) mycetoma

24
Q

CA of white grain mycetoma (4)

A

P. boydii
Acremonium
Fusarium
Scedosporium

25
most common CA of white grain mycetoma
Pseudollescheria boydii (
26
Pseudollescheria boydii is found where (3)
standing water, soil, sewage
27
CA of black grain mycetoma (3) EMC
Exophiala jeanselmei Cuvularia Madurella mycetomatis
28
Chronic fungal infection acquired through traumatic inoculation
Chromoblastomycosis
29
Chromoblastomycosis is acquired through
traumatic inoculation
30
Characterized by development of papule at the site of inoculation that spreads to form warty or tumorlike lesions resembling cauliflower
Chromoblastomycosis
31
Chromoblastomycosis: tumorlike lesions resemble __
cauliflower
32
Chromoblastomycosis is characterized by development of ___
papule at site of inoculation
33
body parts involved in Chromoblastomycosis
feet, legs, may spread to other sites
34
microscopic determinant of chromoblastomycosis
sclerotic bodies
35
Copper-colored, septate cells resembling copper pennies
sclerotic bodies
36
sclerotic bodies causes __ of epidermis
hyperplasia
37
CA of chromoblastomycosis (3) | CPF
Cladosporidium/Cladophialophora spp. Phialophora spp. Fonsecaea spp.
38
Fungal brain abscess is formerly known as
cerebral chromoblastomycosis
39
cerebral chromoblastomycosis new name
fungal brain abscess
40
Fungal brain abscess now considered a type of
phaeohyphomycosis
41
General term for any infection caused by a dematiaceous organism
phaeohyphomycosis
42
infection which may be subcutaneous, localized or systemic
phaeohyphomycosis
43
CA of brain abscess (3)
Cladophialophora bantiana Exophiala dermatitidis Bipolaris
44
CA of sinusitis | (4) ABCE
Alternaria Bipolaris Exserohilum Curvularia
45
CA of Mycotic keratitis amd endophthalmitis
E. dermatitidis, Bipolaris, Curvularia spp.
46
microscopic (lab dx) observe dematiaceous hyphae and small budding yeast cells and/or hyphal fragments what superficial infection
Tinea nigra
47
Conidia are produced by annellophores, containing successive rings called annelides
H. werneckii
48
Colonies are olive to black, shiny and yeastlike
H. werneckii
49
Lab Dx Microscopic: Infected hairs are examined in wet mounts using KOH what superficial infection
Black piedra
50
nodules composed of cemented mycelium
Black piedra
51
Nodules contain spindle-shaped asci that has a filament at each pole and contains 2 to 8 aseptate ascospores
Black piedra
52
Does not sporulate on routine mycologic media
Piedraia hortae
53
P. hortae susceptible to
cycloheximide
54
susceptible to cycloheximide
Piedraia hortae
55
may produce red to brown pigment in culture
Piedraia hortae
56
Highly septate, dematiaceous hyphae with swollen intercalary cells
Piedraia hortae
57
Dark brown to black colonies with aerial mycelium
Piedraia hortae