Question 1

Match the microscopic characteristics with their organism.
-This fundus exhibits cup- or flask-shaped collarette.

Accepted Answer

A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala 
A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala A

Question 2

Match each disease state with the organism that causes it.
-Black piedra

Accepted Answer

A) E.jeanselmei 
B) P.boydii 
C) Piedraia hortae 
D) H.werneckii 
E) Alternaria 
A) E.jeanselmei 
B) P.boydii 
C) Piedraia hortae 
D) H.werneckii 
E) Alternaria C

Question 3

An agricultural worker is punctured by a tool used in the field.An infection,characterized by the development of a papule that is similar to a cauliflower appearance,develops.The worker is most likely suffering from which type of infection?

Accepted Answer

A) Mycetoma 
B) Chromoblastomycosis 
C) Tinea nigra 
D) Black piedra 
A) Mycetoma 
B) Chromoblastomycosis 
C) Tinea nigra 
D) Black piedra B

Question 4

Match the microscopic characteristics with their organism.
-Feltlike,filamentous colonies produce dematiaceous hyphae and conidiophores that are cylindrical and have a tapered tip.

Accepted Answer

A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala 
A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala

Question 5

Match each disease state with the organism that causes it.
-Tinea nigra

Accepted Answer

A) E.jeanselmei 
B) P.boydii 
C) Piedraia hortae 
D) H.werneckii 
E) Alternaria 
A) E.jeanselmei 
B) P.boydii 
C) Piedraia hortae 
D) H.werneckii 
E) Alternaria

Question 6

Match the microscopic characteristics with their organism.
-Conidial heads with a sympodial arrangement of conidia exhibit primary conidia giving rise to secondary conidia.

Accepted Answer

A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala 
A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala

Question 7

Match the microscopic characteristics with their organism.
-Conidia are arranged sympodially,golden brown,multicelled,and curved with a central swollen cell.

Accepted Answer

A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala 
A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala

Question 8

Match the microscopic characteristics with their organism.
-Conidia are usually single celled and exhibit prominent attachment scars (disjunctors).

Accepted Answer

A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala 
A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala

Question 9

Mycetoma is a subcutaneous infection that involves the lower extremities but may also occur in any part of the body.Swelling,purplish discoloration,and tumorlike deformities of the subcutaneous tissue are all symptoms associated with mycetoma.Which organism can cause this disease?

Accepted Answer

A) Bipolaris spp. 
B) Exserohilum spp. 
C) Pseudallescheria boydii 
D) Exophiala dermatitidis 
A) Bipolaris spp. 
B) Exserohilum spp. 
C) Pseudallescheria boydii 
D) Exophiala dermatitidis

Question 10

Match the microscopic characteristics with their organism.
-Conidiophores bear a chain of large brown conidia,resembling a drumstick,and contain both horizontal and longitudinal septa.

Accepted Answer

A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala 
A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala

Question 11

Match each disease state with the organism that causes it.
-White grain mycetoma

Accepted Answer

A) E.jeanselmei 
B) P.boydii 
C) Piedraia hortae 
D) H.werneckii 
E) Alternaria 
A) E.jeanselmei 
B) P.boydii 
C) Piedraia hortae 
D) H.werneckii 
E) Alternaria

Question 12

Macroscopic examination of granules from lesions of mycetoma reveals them to be white to yellow and 0.2 to 2 mm in diameter.Microscopically,the granules consist of loosely arranged,intertwined septate hyaline hyphae cemented together.Which organism can cause a mycetoma infection?

Accepted Answer

A) Fonsecaea spp. 
B) E.dermatitidis 
C) Cladosporium spp. 
D) P.boydii 
A) Fonsecaea spp. 
B) E.dermatitidis 
C) Cladosporium spp. 
D) P.boydii

Question 13

Match the microscopic characteristics with their organism.
-Conidiophores are bent at the locations where conidia are attached;conidia are sympodially arranged and are oblong to fusoid in shape.

Accepted Answer

A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala 
A) Phialophora 
B) Fonsecaea 
C) Alternaria 
D) Bipolaris 
E) Cladophialophora
F)Culvaria
G)Exophiala

Question 14

Match each disease state with the organism that causes it.
-Black-grain mycetoma

Accepted Answer

A) E.jeanselmei 
B) P.boydii 
C) Piedraia hortae 
D) H.werneckii 
E) Alternaria 
A) E.jeanselmei 
B) P.boydii 
C) Piedraia hortae 
D) H.werneckii 
E) Alternaria

Question 15

Match each disease state with the organism that causes it.
-Sinusitis

Accepted Answer

A) E.jeanselmei 
B) P.boydii 
C) Piedraia hortae 
D) H.werneckii 
E) Alternaria 
A) E.jeanselmei 
B) P.boydii 
C) Piedraia hortae 
D) H.werneckii 
E) Alternaria

Question 16

Which dematiaceous fungus causes a condition known as chromoblastomycosis?

Accepted Answer

A) P.boydii 
B) Hortaea werneckii 
C) Phialophora spp. 
D) Exophiala jeanselmei 
A) P.boydii 
B) Hortaea werneckii 
C) Phialophora spp. 
D) Exophiala jeanselmei

Exam 59: Dematiaceious Molds

Match the microscopic characteristics with their organism. -This fundus exhibits cup- or flask-shaped collarette.

Match each disease state with the organism that causes it. -Black piedra

An agricultural worker is punctured by a tool used in the field.An infection,characterized by the development of a papule that is similar to a cauliflower appearance,develops.The worker is most likely suffering from which type of infection?

Match the microscopic characteristics with their organism. -Feltlike,filamentous colonies produce dematiaceous hyphae and conidiophores that are cylindrical and have a tapered tip.

Match each disease state with the organism that causes it. -Tinea nigra

Match the microscopic characteristics with their organism. -Conidial heads with a sympodial arrangement of conidia exhibit primary conidia giving rise to secondary conidia.

Match the microscopic characteristics with their organism. -Conidia are arranged sympodially,golden brown,multicelled,and curved with a central swollen cell.

Match the microscopic characteristics with their organism. -Conidia are usually single celled and exhibit prominent attachment scars (disjunctors).

Mycetoma is a subcutaneous infection that involves the lower extremities but may also occur in any part of the body.Swelling,purplish discoloration,and tumorlike deformities of the subcutaneous tissue are all symptoms associated with mycetoma.Which organism can cause this disease?

Match the microscopic characteristics with their organism. -Conidiophores bear a chain of large brown conidia,resembling a drumstick,and contain both horizontal and longitudinal septa.

Match each disease state with the organism that causes it. -White grain mycetoma

Macroscopic examination of granules from lesions of mycetoma reveals them to be white to yellow and 0.2 to 2 mm in diameter.Microscopically,the granules consist of loosely arranged,intertwined septate hyaline hyphae cemented together.Which organism can cause a mycetoma infection?

Match the microscopic characteristics with their organism. -Conidiophores are bent at the locations where conidia are attached;conidia are sympodially arranged and are oblong to fusoid in shape.

Match each disease state with the organism that causes it. -Black-grain mycetoma

Match each disease state with the organism that causes it. -Sinusitis

Which dematiaceous fungus causes a condition known as chromoblastomycosis?

Microbial Taxonomy

Bacterial Genetics, metabolism, and Structure

Host-Microorganism Interactions

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Role of Microscopy

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Nucleic Acid-Based Analytic Methods for Microbial Identification and Characterization

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Principles of Antimicrobial Action Resistance

Laboratory Methods and Strategies for Antimicrobial Susceptibility Testing

Staphylococcus, Micrococcus, and Similar Organisms

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Alcaligenes, Bordetella Nonpertussis, Comamonas, and Similar Organisms

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Sphingomonas Paucimobilis and Similar Organisms

Moraxella

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Mycobacteria

Obligate Intracellular and Non-culturable Bacterial Agents

Cell Walldeficient Bacteria: Mycoplasma and Ureaplasma

The Spirochetes

Overview of the Methods and Strategies in Parasitology

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Opportunistic Atypical Fungus: Pjirovecii

The Yeasts

Anti-fungal Susceptibility Testing, therapy, and Prevention

Overview of the Methods and Strategies in Virology

Viruses in Human Disease