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Ðề tài: Mycosis

  1. #1
    quocvietyct
    Guest

    Default Mycosis

    Chủ Đề: Default Mycosis

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    ►Ngày Gửi: 12-12-09 ►Đánh Giá: 5Sao

    Definition

    Mycosis is a condition in which fungi pass the resistance barriers of the human or animal body and establish infections.

    Classification

    Mycoses are classified according to the tissue levels initially colonized:


    Superficial mycoses

    Superficial mycoses - limited to the outermost layers of the skin and hair.
    They affect the skin of young people, especially the chest, back, and upper arms and legs, not usually the face.



    Malassezia furfur


    This fungus produces spots that are either lighter than the skin or a reddish-brown.

    Factors that can cause the fungus infection include high humidity, as well as immune or hormone abnormalities.

    Pityrossporum orbiculare(Malassezia furfur) is an example of this kind of myscosis

    Cutaneous mycosesa

    Cutaneous mycoses - extend deeper into the epidermis, restricted to the keratinized layers of the skin, hair, and nails.

    Trichophyton sp

    Cutaneous mycoses are caused by Microsporum, Trichophyton, and Epidermophyton fungi, which together comprise 41 species.

    The resulting diseases are often called ringworm (even though there is no worm involved) or tinea.
    thay đổi nội dung bởi: quocvietyct, 12-12-09 lúc 05:51 PM

  2. #2
    quocvietyct
    Guest

    Default


    Subcutaneous mycoses

    Subcutaneous mycoses - involve the dermis, subcutaneous tissues, muscle, and fascia.



    Sporothrix schenckii


    These infections are chronic and can be initiated by piercing trauma to the skin, which allows the fungi to enter.

    These infections are difficult to treat and may require surgical interventions such as debridement.

    Systemic mycoses due to primary pathogens

    Systemic mycoses due to primary pathogens - originate primarily in the lungs and may spread to many organ systems.


    Histoplasma capsulatum


    Primary pathogens that cause systemic mycoses are dimorphic

    Systemic mycoses due to opportunistic pathogens

    Systemic mycoses due to opportunistic pathogens - infections of patients with immune deficiencies


    Examples of immunocompromised conditions include AIDS, alteration of normal flora by antibiotics, immunosuppressive therapy, and metastatic cancer.

    Opportunistic mycoses include Candidiasis, Cryptococcosis and Aspergillosis.

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