Canine fungal skin infections

Case Study: Fungal Infection - Petfinder

by The following article is courtesy of our partner, Banfield Pet Hospital. Used with permission.

Finding the exact cause of a dog’s biting and scratching can be challenging. In the area of dermatology, many different skin diseases often look very much alike. Approaching dermatology cases requires patience, because all too often, pets can have more than one type of disease or infection, complicating the diagnosis. Approaching a dermatology case requires peeling back the layers of symptoms, primary skin disorders and secondary infections that take advantage of compromised skin.

Case Study: Fungal Infection Thinkstock

I can’t tell you how many times we diagnose demodex on a skin scrape, but the pet’s skin remains itchy and patchy for several months after starting treatment. Often these pets get bacterial infections as well, and they need additional antibiotics for complete resolution of symptoms. In other cases we will diagnose dermatophytosis, but the pet will also have seasonal allergies and break out every spring and summer. Without all the pieces to the puzzle, we cannot effectively treat these pets to satisfaction.

Recently we had a case present to us for a second opinion. A 6-month-old Pit Bull was examined at a private vet for alopecia (hair lost from some or all areas of the body) and itchy skin. They performed a skin scrape which was negative for mites and an impression smear which was positive for bacteria. The pet was given the appropriate antibiotic for the appropriate length of time, but he remained itchy. Then they performed allergy testing which came back negative.

The owner stated that the vet was out of ideas and she just wanted the pet to stop itching. Since the pet came to us on the weekend, we were unable to get his medical records. However, I explained to the owner that it would be a good idea to start with the basics, repeat some tests, and see what is on the pet’s skin now, as sources of infection can change over a short period of time.

We started with the black light, and my, oh my, how the pet glowed! The trunk and neck had green-apple flakes throughout the non-haired areas. In addition, the toenails and nail beds were a bright apple-green color.

Apple-green glow from a black light can indicate a possible fungal infection often referred to as ringworm. Unfortunately, not all skin lesions that glow green are caused by fungus and not all fungal infections glow green on the black light test. However, we knew to pay close attention to the rest of the skin tests.

The skin scrape confirmed that there were no Demodex mites, but we still kept in the back of our minds the possibility of a Sarcoptic mite infection that is very difficult to detect on skin diagnostics. The impression smear revealed no yeast or bacteria. However, we scrutinized it very closely, and there, like a needle in a haystack, we saw a lone dermatophytosis spore (often referred to as “canoes” based on their appearance, which differentiates them from non-disease-causing fungal species).

We continued with the fungal culture, which would take 10 days to complete and would confirm a dermatophytosis infection. We also performed the thyroid screen. Some pets with low thyroid levels are very susceptible to secondary skin infections from bacteria, yeast, fungus, and even mites. Without checking that level, the pet could relapse very quickly with another skin infection soon after resolving the present one — very frustrating for owners!

Source: www.petfinder.com


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Diaper Rash is Yeast silly

2010-01-05 16:57:07 by rawr_seriousas

Wow
Most diaper rashes have to do with impairment of skin integrity rather than any specific bacterial or fungal infection. Urine and stool acidity (the latter seen in diarrhea) and chronic wetness coupled with a warm barrier environment are all factors proposed as causes of diaper dermatitis (diaper rash). However, sometimes a superficial skin infection is a factor in diaper rash. The most common infectious cause of diaper rash is Candida albicans (yeast, a fungus).

Because i know what she needs

2010-01-05 16:58:10 by rawr_seriousas

And you don't.
Most diaper rashes have to do with impairment of skin integrity rather than any specific bacterial or fungal infection. Urine and stool acidity (the latter seen in diarrhea) and chronic wetness coupled with a warm barrier environment are all factors proposed as causes of diaper dermatitis (diaper rash). However, sometimes a superficial skin infection is a factor in diaper rash. The most common infectious cause of diaper rash is Candida albicans (yeast, a fungus).

Here is a better link

2009-10-07 13:23:46 by slashers


Jock itch is a form of ringworm that causes an itchy rash on the skin of your groin area. It is much more common in men than in women. Jock itch may be caused by the spread of athlete's foot fungus to the groin.
Ringworm is contagious. It spreads when you have skin-to-skin contact with a person or animal that has it. It can also spread when you share things like towels, clothing, or sports gear.

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However, the safety and versatility of the ointment has quickly made the natural treatment a phenomenon for a variety of resistant fungal, bacterial and viral skin conditions.

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  • Avatar oco_toc Oridermyl for fungal infection on dogs leg?
    Jul 05, 2011 by oco_toc | Posted in Dogs

    I brought my dog to the vet yesterday as she has developed 2 bald patches on the backs of her legs. He said it was a fungal infection and prescribed Oridermyl to be applied to the area twice daily.

    I though …r /> I was wondering if anyone else had ever been prescribed this medication for a skin infection in their dog and also it is very difficult to stop her licking it - is this dangerous. Many thanks for any information.

    • I'm not familiar with that particular medication, however topicals used to treat fungal infections in canines should contain either one or all of these ingredients to be effective;
      clotrimazole
      chlorhexidine acetate
      miconazole nitrate

  • Avatar cgeiger2000 Any home remedies to help save a dog with Blastomycosis?
    Jul 11, 2008 by cgeiger2000 | Posted in Dogs

    My dog has been diagnosed with Blastomycosis, which is a fungal infection and is fatal. I can not afford the $1200 it would cost for proper treatment. Any at home fungal sprays or anything I could try to save him?
    Just wanted to clarify that it is a fungal infection of the lungs.

    • Blastomycosis disseminates in dogs or people, antifungal therapy is necessary. Otherwise, the disease will progress and can be fatal. Antifungal therapy presents problems to the human or veterinary clinician. There are a …y to canine patients.



      edit* I am aware that this is a fungal infection of the lungs. Diflucan circulates thru the blood and attacks the fungus where it finds it be it the lungs or the skin.