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Tinea pedis is a foot infection due to a dermatophyte fungus, more commonly known as ringworm.
The diagnosis of Tinea pedis is confirmed through clinical inspection by microscopy and culture of skin scrapings. If treatment is unsuccessful consider consulting your doctor as there may be an untreated infection, reinfection from contact with spores in your surroundings or clothing, an untreated infected family member, or an alternative explanation for your symptoms such as dermatitis or psoriasis. All material on this website is protected by copyright, Copyright © 2009-2016 by DermDiagnosis LLC.
Tinea pedis is a dermatophytosis of the feet, whereas tinea manus affects the palmar and interdigital areas of the hand.
Tinea manus may be acquired by direct contact with an infected person or animal, the soil, or autoinoculation.
Usually bilateral with patchy or diffuse scaling limited to the thick skin, soles, and the lateral and medial aspects of the feet, this is also known as “moccasin-type” tinea pedis. Unilateral tinea manuum commonly occurs in association with hyperkeratotic tinea pedis, resulting in the “two feet-one hand syndrome” .


The vesiculo-bullous and acute ulcerative types commonly produce a vesicular id reaction, either as a dyshidroticlike distribution on the hands or on the lateral foot or toes. For vesiculo-bullous lesions, examination of the roofs yields the highest rate of positivity on KOH examination.
Histologically, hyperkeratotic tinea pedis or tinea manuum is characterized by acanthosis, hyperkeratosis, and a sparse, chronic, superficial perivascular infiltrate in the dermis. Melanoma is the leading cause of cancer death of women in their 20s and second only behind breast cancer among women in their 30s? The prevalence of tinea pedis is approximately 10 percent, primarily attributable to modern occlusive footwear, although increased worldwide travel has also been implicated. However, it is nearly always associated with tinea pedis and occurs most commonly in the hand used to excoriate the feet. When tinea manus extend to the dorsum of a hand, it assumes the clinical pattern of tinea corporis . Vesiculo-bullous forms display spongiosis, parakeratosis, and sub-corneal or spongiotic intraepithelial vesiculation.


The condition is most frequently due to trichophyton rubrum, trichophyton interdigitale, or epidermophyton floccosum. Moccasin tinea is extensive hyperkeratonic tinea, which causes dry scaling of the sole, heel and sides of the foot (but not the top) and does not include inflammation. The incidence of tinea pedis is higher among those using communal baths, showers, or pools. Oral antifungals are often required for treatment due to the high incidence of concomitant onychomycosis and relapse. Some people are particularly prone which may be because they are more exposed to the spores at home or during recreational activities, their skin produces less fatty acid (a natural antifungal agent), they wear occlusive footwear, they wear the same pair of socks or shoes for long periods, they sweat excessively (hyperhidrosis), they have some form of immune deficiency such as HIV, or they have poor circulation resulting in cold feet. Clusters of blisters or pustules on the sides of the feet or insteps may form in some versions or round dry patches on the top of the foot.




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