Mycology Huda Alzubaidi December 2, 2013. Introduction Transmission Causes Symptoms Types of...
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Transcript of Mycology Huda Alzubaidi December 2, 2013. Introduction Transmission Causes Symptoms Types of...
DERMATOPHYTOSIS
MycologyHuda Alzubaidi
December 2, 2013
Outline
Introduction
Transmission
Causes Symptoms
Types of infection
Conclusion
Inroduction
Dermatophytosis is a mycotic infection of the hair, skin, or nails.
The fungi that cause dermatophytosis are Dermatophytes.
The genera which cause this infection include: Trichophyton, Microsporum & Epidermophyton .
The most common diseases that dermatophytes cause are Tinea pideas (Athlete’s Foot) and Tinea capitis (ringworm).
Facts
Approximately 70% of the world’s population is predicted to experience dermatophytosis during their lifetime.
Infection only occurs when skin conditions are in a warm and moist environment.
Adult males are more susceptible to Athlete’s foot while children are more likely to experience Tinea capitis.
Athlete’s foot
Tinea pedis
Fungal infection that commonly occurs on the soles of the feet and between the webs of toes.
The name was derived from common infection within athletes
Trichophyton
TRICHOPHYTON RUBRUM TRICHOPHYTON MENTAGROPHYTES
Causes
Poor hygiene
Walking barefoot in contaminated environments.
Wearing tight fitting shoes that are airless and prevent sweat from evaporating.
Transmission
Direct contact:Skin-to-skin contact
Indirect contact:ShoesTowels Nail salonsSwimming pools
General Symptoms
Cracks and skin peeling between two toes
Soreness
Itchiness
Sweaty
Smelly feet
Risk factors for Athlete’s foot
Immunocompromised
Those on immunosuppresants Organ transplant
patient’s
Diabetes
Toe web infection
Inter-digital infection.
The most common type of athlete’s foot infection,
Easiest type of Athlete’s foot to treat.
Moccasin infection
Moccasin type of infection is long lasting or chronic.
Caused by T. rubum
Severe cases this type of infection may lead to crumbling or fall out of toenails.
Vesicular infection
Caused by T.mentagrophytes.
The least common of infection .
Begins as fluid-filled blisters on the skin, between toes, on the heel, or sole of the foot.
Treatment& Prevention
Treatment: Non prescription topical antifungals such as
Micatin. prescription topical & oral antifungals such as
Naftin & Lamisil .
Prevention: Avoid walking barefoot. Keep your feet dry. Wear cotton socks.
Tinea capitis
Causal species
Microsporum canis M. audouinii M. distortum M. cookei
Risk factors of Tinea capitis
Ages: 3-7 years old
Daycare centers.
Nursing homes
Immunocompromised
HIV & Cancer
Organ transplant patients
Transmission
Direct contact with infected area of someone else.
Sharing contaminated combs, hats or bed clothes.
Pets such as dog & cats
Tinea capitis Symptoms
Head rash & Scalp pain
Localized redness & swelling on the scalp.
Patches become lumpy.
Hair loss & lasting scars..
Types of Tinea capitis infection
Three types:
Ectothrix infection
Endothrix infection
Favus infection
Treatment& Prevention
Treatment:Oral therapy can be used such as Griseofulvin.
Prevention:Wash your hair regularly.No sharing personal items.
Conclusion
Dermatophytosis is a fungal infection that infect the skin, hair and nails.
It is a zoonotic infection which can be transferred from animals to human.
It is more prevalent in warm climate. The most common disease of
dermatophytosis are Tinea pedis & Tinea capitis
References
Alters, S., & Schiff, W. (2011). Essential concepts for healthy living. Sudbury, Mass: Jones and Bartlett Publishers.
Baxter, D. E., Porter, D. A., & Schon, L. (2008). Baxter's the foot and ankle in sport. Philadelphia, PA: Mosby Elsevier.
Bragg, P. C., & Bragg, P. (2004). Bragg build strong healthy feet. Santa Barbara, Calif: Health Science.
Diseases, disorders, and injuries. (2011). New York: Marshall Cavendish Reference.
Markova, T. (2002). What is the most effective treatment for tinea pedis (athletes’s foot)? Journal of Family Practice; 51(1):21.
Parekh, S. G., Patel, D., & Parekh, J. G. (2012). Foot and ankle surgery. New Delhi, India: Jaypee Brothers Medical Publishers.
Silverstein, A., Silverstein, V. B., & Nunn, L. S. (2011). Tapeworms, foot fungus, lice, and more: The yucky disease book. Berkeley Heights, NJ: Enslow Publishers