Presentation Chap 3
- 1. Vincent Jackson Biology 120 Presentation 3
- 2. Dermat/o Dermatitis-Inflammation of the skin. Dermatitis symptoms vary with all different forms of the condition. They range from skin rashes to bumpy rashes or including blisters. Although every type of dermatitis has different symptoms, there are certain signs that are common for all of them, including redness of the skin, swelling, itching and skin lesions and sometimes oozing and scarring. Also, the area of the skin on which the symptoms appear tends to be different with every type of dermatitis .
- 3. Melan/o Melanocyte-Black Cell Melanocyte are melanin producing cells located in the bottom layer the of the skin's epidermis, the middle layer of the eye, the inner ear, meninges, bones and heart. Melanin is a pigment that is responsible primarily for the color of the skin.
- 4. Derma Xeroderma- Dry Skin Xeroderma can be caused by a deficiency of vitamin A, vitamin D, systemic illness, severe sunburn or some medications. Xeroderma in most cases can safely be treated with emollients and/or moisturizers.
- 5. Onych/o Onychoycosis- Abnormal condition of nail fungus There are four classic types of onychomycosis Distal subungual onychomycosis is the most common form and is usually caused by Trichophyton rubrum, which invades the nail bed and the underside of the nail plate. White superficial onychomycosis is caused by fungal invasion of the superficial layers of the nail plate to form "white islands" on the plate. In some cases, WSO is a misdiagnosis of "keratin granulations" which are not a fungus, but a reaction to nail polish that can cause the nails to have a chalky white appearance. A laboratory test should be performed to confirm.
- 6. Oncycho cont. Oncychomycosis Proximal subungual onychomycosis is fungal penetration of the newly formed nail plate through the proximal nail fold. It is the least common form in healthy people, but is found more commonly when the patient is immunocompromised. Candidal onychomycosis is Candida species invasion of the fingernails, usually occurring in persons who frequently immerse their hands in water. This normally requires the prior damage of the nail by infection or trauma.