Page 414 - Review of Medical Microbiology and Immunology ( PDFDrive )

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48
T
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Cutaneous & Subcutaneous

Mycoses
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CHAPTER C ONTENT S

Chromomycosis
Introduction
Mycetoma
Cutaneous Mycoses
Dermatophytoses
Tinea Versicolor
Summaries of Organisms
Practice Questions: USMLE & Course Examinations
Tinea Nigra
Subcutaneous Mycoses Self-Assessment Questions
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Sporotrichosis

INTRODUCTION
important features of the causative organisms are
Medical mycoses can be divided into four categories: (1)
described in Table 48–2. The systemic and opportunistic
cutaneous, (2) subcutaneous, (3) systemic, and (4)
mycoses are discussed in Chapters 49 and 50,
opportunistic. Some features of the important fungal
respectively.
diseases are described in Table 48–1. Cutaneous and
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TABLE 48–1 Features of Important Fungal Diseases
Representative Disease
Type
Anatomic Location
Malassezia
Tinea versicolor
1+
Cutaneous
Dead layer of skin
Microsporum, Trichophyton, Epidermophyton
2+
Epidermis, hair, nails
Dermatophytosis (ringworm)

Sporothrix
2+
Subcutaneous
Subcutis
Sporotrichosis

2+
Mycetoma
Several genera
Histoplasmosis

4+
Histoplasma
Blastomycosis

Systemic Internal organs Coccidioidomycosis Coccidioides 4+
4+
Blastomyces
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4+
Paracoccidioides

Paracoccidioidomycosis
Cryptococcosis
Cryptococcus
Opportunistic
4+
Internal organs
Candidiasis

2+ to 4+

Aspergillosis
4+

Aspergillus
4+

Mucormycosis

Mucor, Rhizopus
1
1+ = not serious, treatment may or may not be given; 2+ = moderately serious, treatment often given; 4+ = serious, treatment given especially in disseminated disease.
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