TineacapitisRingworm

TineacapitisRingworm - Signs and Symptoms- Starts of like a...

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Tinea Capitis / Ringworm of the scalp / Tinea tonsurans Learning Objective Harrison’s: 312, 1264, Define Disease caused by superficial fungal infection of the skin of the scalp, eyebrows, and eyelashes, with a propensity for attacking hair shafts and follicles. caused by : - Trichophyton and - Microsporum Form of superficial mycosis or dermatophytosis also known as: - Ringworm of the scalp - Tinea tonsurans Epidemiology African American male children 10 and under (peak 3-7) after puberty more common in females maybe because they are around children more or hormonal factors. Pathophysiology - From the site of inoculation, the fungal hyphae grow centrifugally in the stratum corneum. - The fungus continues downward growth into the hair, invading keratin as it is formed. - The zone of involvement extends upwards at the rate at which hair grows, and it is visible above the skin surface by days 12-14. -Infected hairs are brittle, and by the third week, broken hairs are evident.
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Unformatted text preview: Signs and Symptoms- Starts of like a red papule around a hair shaft of the head- within days becomes pallar and scaly - hair becomes discolored and breaks off- may be pruitic - alopacia may result in affected area - inflamation may occur - It appears like a ring hence ringworm Diagnostic test KOH preperation: for fungal hyphae Culture: this may take 2 weeks to come back Woods lamp: some fungus glow in UV light Treatment Griseofulvin dosage of 20-25 mg/kg/d for 6-8 weeks Shampoo containing povidone-iodine has been shown to be more effective Those around the person infected should be screened and treated "Children receiving treatment for tinea capitis may attend school. Haircuts, shaving of the head, wearing a cap during treatment are not necessary." Follow up Therapeutic progress is monitored by regular clinical examination with the aid of a Wood lamp Sources Tinea Capitis http :// emedicine . medscape . com / article /1091351-overview woods lamp...
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TineacapitisRingworm - Signs and Symptoms- Starts of like a...

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