Ultraviolet Light Ringworm

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Ultraviolet light ringworm.

A black light diagnosis should not be considered conclusive. Ringworm makes its home on the hair and skin and it affects both people and pets. Ultraviolet light used in diagnosing ringworm. Although both species fluoresce blue green under a wood s lamp both species are uncommon causes of tinea infections.

The light itself looks bluish or purplish and causes some of the organisms responsible for ringworm to appear to glow yellow or green when the. Take a culture of the suspected fungus with a cotton swab and allow it to develop in a sealed culture media or seek professional assistance. Ultraviolet light wood s lamp normally ultraviolet light is not useful in the diagnosis of tinea with the exception of two species microsporum canis and audouinii. John angus a veterinary dermatologist at the university of illinois veterinary teaching hospital in urbana.

A wood s lamp correctly used can be a helpful and cost effective screening tool. It also can detect skin pigment disorders such as vitiligo and other. The uv light used for identifying ringworm is often known as a wood s lamp by practitioners. Ringworm is very badly named because it is caused by a fungus not a worm says dr.

One of the simplest ways to diagnose ringworm is with the woods lamp which is an ultraviolet lamp also know as a black light. In humans ringworm forms a ring shaped raised red rash but this presentation is not common in animals. A wood s lamp examination is a procedure that uses transillumination light to detect bacterial or fungal skin infections. Canis the most common feline ringworm species to fluoresce.

50 of the microsporum canis species will fluoresce when the woods lamp is placed near the area of hair loss. Confirm the diagnosis with a culture. The light in the source is filtered using nickel oxide and is often called black light in common usage.