Onychomycosis (Nail fungus) and Scabies (Sarcoptic Mange)

by Carlo Raj, MD

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    The topic here is onychomycosis. What does that mean? It’s a fungal infection of nail plate or nail bed. If it’s one thing that you want take out of this fungal infection, onycho- means nail. Caused by dermatophytes or some saprophytes. Fungal infection of the nail bed. Demographics: 20% will be of the elderly, onychomycosis. Caused by thickened, dystrophic and discolored toenail, with crumbling, and it’s called onycholysis. So the onychomycosis at some point when it then affects your nail bed, you cause destruction of it, we call this onycholysis. Note the only cause of dystrophic nail is onychomycosis, usually dermatophyte or maybe a saprophyte. If you then take look at the nail here on your left, you’d find this to be a very dystrophic nail in onychomycosis. Diagnosis: Must prove the diagnosis before treatment, and may perform as you can imagine, a KOH prep or nail biopsy. Management: You need to make sure that you at first confirm it. And once you do, know that often treatment is restricted to the finger nail. Diabetics and those with ambulatory issues, and by that we mean what? Difficulty with movement. Requires oral antifungals for prolonged course. Once again, we have terbinafine or an azole drug as itraconazole. Scabies. A scabies infestation of the mite – The name of the mite here is called your Sarcoptes scabiei. Healthy persons may only have a dozen mites on the entire body whereas an immunocompromised individual get crusted scabies with millions of mites. Doesn’t that sound like a wonderful, wonderful discovery? So what does this look like on your skin with scabies? Female mites, they burrow into the superficial skin and there they go and plop! They drop feces and eggs. Pleasant. Allergic reaction occurs in the material that’s been produced by the mite. Pruritic...

    About the Lecture

    The lecture Onychomycosis (Nail fungus) and Scabies (Sarcoptic Mange) by Carlo Raj, MD is from the course Infectious Skin Diseases. It contains the following chapters:

    • Onychomycosis
    • Scabies

    Author of lecture Onychomycosis (Nail fungus) and Scabies (Sarcoptic Mange)

     Carlo Raj, MD

    Carlo Raj, MD

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