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WorksheetsMCQs on Subcutaneous Mycoses
Total questions: 61
Worksheet time: 20mins
What is the most common cause of mycetoma?
Bacteria
Viruses
Fungi
Parasites
The most frequently isolated species of eumycetoma in Africa and India is:
Sporothrix schenckii
Phialophora verrucosa
Madurella mycetomatis
Fonsecaea pedrosoi
Mycetoma is typically caused by:
Inhalation of spores
Direct inoculation of the organism through trauma
Consumption of contaminated food
Contact with infected animals
Which of the following cells are involved in the host's inflammatory response to mycetoma?
Neutrophils
Erythrocytes
Platelets
Red blood cells
A common clinical feature of mycetoma is:
Rapidly spreading rash
Formation of nodules and abscesses
Severe pain
High fever
What is the typical size of mycetoma grains found in the inflammatory mass?
0.5 mm
2 mm
5 mm
10 mm
The macroscopic observation of grains in a mycetoma lesion helps in identifying:
The severity of infection
The causative organism
The patient's immune response
The need for surgical intervention
Which of the following is NOT a typical treatment for mycetoma?
Antifungal agents
Surgery
Antibacterial agents
Radiotherapy
Sporotrichosis is commonly known as:
Gardener's disease
Farmer's lung
Rose gardener's disease
Fungal dermatitis
The causative agent of sporotrichosis is:
Sporothrix schenckii
Madurella mycetomatis
Cladophialophora carrionii
Basidiobolus ranarum
Sporotrichosis is typically acquired through:
Inhalation of spores
Direct contact with contaminated water
Trauma from thorns or splinters
Consumption of contaminated food
Which form of sporotrichosis is most common?
Plaque form
Lymphocutaneous form
Disseminated form
Pulmonary form
In sporotrichosis, thickened, cord-like lymphatics are associated with:
Lymphocutaneous form
Plaque form
Disseminated form
None of the above
The diagnosis of sporotrichosis is confirmed by:
Direct microscopy
Culture of the organism
Serological tests
PCR
The 'sporothrix asteroid body' is typically seen in which of the following tests?
KOH mount
Skin biopsy
Blood culture
Urine analysis
Which treatment is most commonly used for sporotrichosis?
Itraconazole
Amphotericin B
Fluconazole
Ketoconazole
Chromoblastomycosis is a chronic fungal infection caused by:
Yeasts
Dematiaceous fungi
Dimorphic fungi
Hyaline fungi
The primary lesion of chromoblastomycosis typically becomes:
Ulcerative
Verrucous and wart-like
Nodular
Pustular
The common causative organisms of chromoblastomycosis include all EXCEPT:
Phialophora verrucosa
Fonsecaea pedrosoi
Sporothrix schenckii
Rhinocladiella aquaspersa
Chromoblastomycosis is most commonly found in:
Temperate regions
Tropical and subtropical regions
Arctic regions
Urban areas
The characteristic microscopic finding in chromoblastomycosis is:
Hyphal fragments
Sclerotic bodies
Yeast cells
Spores
Which of the following is the most effective treatment for small lesions of chromoblastomycosis?
Chemotherapy
Cryotherapy
Surgical excision
Radiotherapy
Flucytosine is used to treat chromoblastomycosis in combination with:
Amphotericin B
Itraconazole
Fluconazole
Voriconazole
Which of the following is NOT a clinical feature of chromoblastomycosis?
Cauliflower-like nodules
Crusting abscesses
Thickened, cord-like lymphatics
Verrucous lesions
Subcutaneous mycoses are primarily associated with:
Systemic spread
Skin and subcutaneous tissue infection
Respiratory tract infection
Gastrointestinal infection
Which of the following organisms is known to cause subcutaneous infections?
Aspergillus fumigatus
Cryptococcus neoformans
Basidiobolus ranarum
Candida albicans
Subcutaneous infections are typically acquired through:
Inhalation
Ingestion
Trauma
Blood transfusion
Which of the following is a distinguishing feature of eumycetoma?
Presence of black grains in the lesion
Rapid spread to lungs
Hematogenous spread
Involvement of central nervous system
Which type of hypersensitivity reaction is associated with the Sporotrichin skin test?
Type I
Type II
Type III
Type IV
A common diagnostic method for subcutaneous mycoses involves:
Blood culture
Skin biopsy and culture
Urine analysis
Chest X-ray
Which of the following is NOT a typical feature of subcutaneous mycoses?
Chronic course
Localized infection
Systemic dissemination
Response to surgical treatment
Subcutaneous mycoses often present with:
High fever and chills
Slowly progressive lesions
Acute onset with rapid spread
Profuse sweating and fatigue
Which of the following organisms is NOT associated with subcutaneous mycoses?
Fonsecaea pedrosoi
Cladosporium carrionii
Aspergillus fumigatus
Phialophora verrucosa
Which organism is associated with subcutaneous mycoses?
Fonsecaea pedrosoi
Cladosporium carrionii
Aspergillus fumigatus
Phialophora verrucosa
Subcutaneous mycoses are most commonly found in:
Urban areas
Temperate climates
Rural, tropical regions
Arctic regions
Which of the following is NOT a causative organism of chromoblastomycosis?
Fonsecaea pedrosoi
Phialophora verrucosa
Cladophialophora carrionii
Sporothrix schenckii
The main mode of transmission for subcutaneous mycoses is:
Person-to-person contact
Airborne transmission
Direct inoculation through trauma
Ingestion of contaminated food
Which of the following is the most common treatment for severe cases of sporotrichosis?
Topical antifungals
Oral antifungals
Intravenous amphotericin B
Surgical excision
Mycetoma can involve which of the following tissues?
Skin, subcutaneous tissue, and bone
Gastrointestinal tract
Central nervous system
Respiratory tract
The presence of "sclerotic bodies" is characteristic of which subcutaneous mycosis?
Mycetoma
Sporotrichosis
Chromoblastomycosis
Basidiobolomycosis
Which diagnostic test is used to identify the causative organism in chromoblastomycosis?
Gram stain
Skin biopsy with culture
PCR
Chest X-ray
A patient with nodular lesions that develop into cauliflower-like growths is likely suffering from:
Mycetoma
Chromoblastomycosis
Sporotrichosis
Phaeohyphomycosis
Which of the following treatments is most effective for large lesions in chromoblastomycosis?
Topical antifungals
Intravenous antibiotics
Chemotherapy (flucytosine, itraconazole)
Radiotherapy
Which of the following is a common clinical feature of subcutaneous mycoses?
Painless, chronic nodules
Rapidly spreading rash
High fever and systemic symptoms
Necrotizing fasciitis
The lymphocutaneous form of sporotrichosis spreads along:
Blood vessels
Lymphatics
Nerves
Muscle tissue
The "cauliflower-like" appearance of lesions is characteristic of:
Sporotrichosis
Chromoblastomycosis
Mycetoma
Phaeohyphomycosis
Which organism is associated with a chronic granulomatous infection that spreads along lymphatics?
Madurella mycetomatis
Fonsecaea pedrosoi
Sporothrix schenckii
Phialophora verrucosa
Which of the following is a diagnostic feature of mycetoma?
Hyphal fragments in tissue
Formation of sclerotic bodies
Presence of fungal grains in pus
Granulomatous inflammation
The presence of thick-walled sclerotic bodies in tissue sections is diagnostic of:
Sporotrichosis
Chromoblastomycosis
Mycetoma
Phaeohyphomycosis
Which of the following is a distinguishing feature of Sporothrix schenckii in sporotrichosis?
Black grains
Asteroid bodies
Sclerotic bodies
Hyphal fragments
Which of the following organisms is commonly found in soil, decaying vegetation, and plant matter, causing subcutaneous mycosis?
Fonsecaea pedrosoi
Cladophialophora carrionii
Sporothrix schenckii
Madurella mycetomatis
Mycetoma primarily involves which of the following body parts?
Hands and feet
Scalp
Abdomen
Face
The presence of "black grains" in a lesion is indicative of:
Eumycetoma
Actinomycetoma
Chromoblastomycosis
Sporotrichosis
Which of the following is a common treatment option for eumycetoma?
Radiotherapy
Surgical excision
Topical antifungals
Cryotherapy
The chronic nature of subcutaneous mycoses often results in:
Systemic infection
Localized tissue damage
Acute respiratory failure
Rapid healing
Which of the following is true about the dissemination of Sporotrichosis?
It rarely disseminates beyond the skin and lymphatics.
It commonly causes systemic infection.
It spreads through the bloodstream to vital organs.
It often causes meningitis.
A chronic fungal infection presenting with verrucous, wart-like lesions that eventually form cauliflower-like nodules is most likely:
Mycetoma
Chromoblastomycosis
Sporotrichosis
Phaeohyphomycosis
Which of the following subcutaneous mycoses has the potential to cause bone involvement?
Sporotrichosis
Chromoblastomycosis
Mycetoma
Phaeohyphomycosis
Chromoblastomycosis is often resistant to which of the following treatments?
Surgical excision
Topical antifungals
Radiotherapy
Cryotherapy
The characteristic "asteroid body" seen in Sporotrichosis is:
A collection of neutrophils around a yeast cell
A granuloma with central necrosis
A fungal grain surrounded by eosinophilic material
A yeast cell surrounded by radiating eosinophilic material
Which of the following statements about phaeohyphomycosis is correct?
It is caused by dematiaceous (darkly pigmented) fungi.
It is commonly associated with the presence of black grains.
It is characterized by the formation of sclerotic bodies.
It is primarily transmitted through inhalation of spores.
