Dermatophytes
Scalp involvement with hair loss and dermatophyte infection is specifically tinea capitis (ringworm of the scalp).
What our notes say
- Scalp involvement with hair loss and dermatophyte infection is specifically tinea capitis (ringworm of the scalp). (Skin & Breast Pathology MCQs: Dermatological Lesions & Diseases)
- A: Both are dermatophytes that cause cutaneous mycoses (tinea infections), and both have many common commensal-related characteristics. (Medical Mycology Q&A Section A.. )
- Except for dimorphic fungi and dermatophytes (primary pathogens), most fungi are opportunistic (MEDICAL MYCOLOGY — LONG ANSWER QUESTIONS)
- Cutaneous — invades keratinized tissues; evokes cellular immune response; can cause hypersensitivity reactions; caused by dermatophytes (MEDICAL MYCOLOGY — SHORT ANSWER QUESTIONS)
- Griseofulvin disrupts the fungal mitotic spindle and treats dermatophyte infection of skin, hair and nails (Medical Virology & Mycology Paper Two 2022/2023 — MKU MBMM 3300 Questions & Answ)
- It disrupts fungal mitosis by interfering with microtubule function, making it effective specifically against dermatophyte infections (ringworm, tinea). (Pharmacology END SEM 3CAT: Drug Response, Bioavailability & Antifungals)
Study material on Dermatophytes
- 📚 MEDICAL VIROLOGY & MYCOLOGY — MCQ BANK
- Medical Mycology Fundamentals: Fungi, Antifungal Drugs & More
- Medical Mycology Q&A Section A..
- MEDICAL MYCOLOGY — LONG ANSWER QUESTIONS
- Medical Virology & Mycology Paper Two 2022/2023 — MKU MBMM 3300 Questions & Answers
- MEDICAL MYCOLOGY — SHORT ANSWER QUESTIONS
- Pharmco Notes
- Medical Microbiology III Exam: Viruses, Fungi & Diagnosis
- Mycoses: Superficial, Cutaneous & Systemic Fungal Infections
- Mycoses: Fungal Pathogenesis, Virulence & Host Immune Defense
- Medical Mycology Q&A: Fungal Pathogens, Drugs, & Diseases
- Medical Virology & Mycology Paper Two 2022/2023 — MKU MBMM 3300 MCQs with Answers
- Virology 3
Practice questions on Dermatophytes
All of the following dermatophytes are responsible for nail infections EXCEPT:
- Epidermophyton floccosum
- Trichophyton rubrum
- Microsporum canis
- Trichophyton tonsurans
Answer: A. While Trichophyton rubrum, Trichophyton tonsurans, and Microsporum canis can cause nail infections (onychomycosis), Epidermophyton floccosum typically infects the skin and hair but not the nails.
All of the following dermatophytes are responsible for nail infections EXCEPT:
- Trichophyton rubrum
- Trichophyton tonsurans
- Epidermophyton floccosum
- Candida albicans
Answer: D. Candida albicans can cause nail infections (onychomycosis), but it is a yeast, not a dermatophyte. Trichophyton rubrum, Trichophyton tonsurans, and Epidermophyton floccosum are all dermatophytes known to cause nail infections.
All of the following dermatophytes are responsible for nail infections (onychomycosis) EXCEPT:
- Trichophyton rubrum
- Epidermophyton floccosum
- Microsporum canis
- Trichophyton mentagrophytes
Answer: C. Microsporum species primarily infect hair and skin, rarely nails. Trichophyton rubrum, Epidermophyton floccosum, and Trichophyton mentagrophytes are common causes of onychomycosis.
All of the following dermatophytes are responsible for nail infections EXCEPT:
- Trichophyton rubrum
- Epidermophyton floccosum
- Microsporum canis
- Trichophyton mentagrophytes
Answer: C. Microsporum species, including Microsporum canis, are primarily associated with hair and skin infections, not typically nail infections (onychomycosis).
NOT classified as a dermatophyte:
- Microsporum gypseum
- Trichophyton mentagrophytes
- Trichophyton rubrum
- Candida albicans
- Epidermophyton floccosum
Answer: D. It is a yeast, not a dermatophyte.
All of the following dermatophytes are responsible for nail infections EXCEPT:
- Trichophyton rubrum
- Trichophyton mentagrophytes
- Epidermophyton floccosum
- Microsporum canis
Answer: D. Microsporum species typically infect hair and skin but not nails, whereas Trichophyton and Epidermophyton are common causes of onychomycosis.