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Dermatology back
An Introduction to Dermatology
The skin is one of the largest organs in the body. Ittaj_dermatology has a surface area of 1.8 m2 and makes up approximately 16% of our body weight. More importantly, the skin is a window through which the physician can "see" the entire body.1.
Dermatology involves but is not limited to study, research, and diagnosis of normal and disorders, diseases, cancers, cosmetic and ageing conditions of the skin, fat, hair, nails and oral and genital membranes, and the management of these by different investigations and therapies, including but not limited to dermatohistopathology, topical and systemic medications, dermatologic surgery and dermatologic cosmetic surgery, immunotherapy, phototherapy, laser therapy, radiotherapy and photodynamic therapy.
The skin is often referred to as the "integumentary system" composed of epithelial, mesenchymal, glandular and neurovascular components. Specifically, the integumentary system consists of the skin and its derivatives such as: sweat glands, sebaceous glands, nails, hair, and arrector pili muscles. Also included in the system are the mammary glands and the teeth.
The skin can also be divided into three main functional areas:

1) Epidermis: the major protective layer derived from ectoderm.
2) Dermis: the major support layer derived from mesoderm.
3) Skin Appendages: cells derived from both ectoderm and mesoderm:
    - Eccrine Sweat Gland
    - Apocrine Sweat Gland
    - Sebaceous Gland
    - Hair Follicle
    - Nails
 Based on the thickness of the epidermis, skin can also be classified as thick or thin:

1) Thick skin covers our palms and soles. It has sweat glands, but lacks hair follicles, arrector pili muscles, and sebaceous glands.
2) Thin skin covers most of the rest of the body. It contains hair follicles, arrector pili muscles, sweat glands, and sebaceous glands.
Functions of the Skin:::
# barrier to physical agents
# protects against mechanical injury
# prevents dehydration of body through fluid loss
# reduces the penetration of UV Radiation
# helps regulate body temperature
# provides a surface for grip
# acts as a sensory organ
# acts as an outpost for immune surveillance
# plays a role in Vitamin D production
# has a cosmetic association
Arrange to see a dermatologist as soon as possible whentaj_skin symptoms of skin disease appear, or when current therapy is ineffective. Expert diagnosis, rapid cure, or good management means decreased cost and less suffering.
taj for doctors _skin doctor

A dermatologist is a physician who is trained to evaluate and manage pediatric and adult patients with benign and malignant disorders of the skin, hair, nails and adjacent mucous membranes. A dermatologist has had additional training and experience in the following:
1. The diagnosis and treatment of skin cancers, melanomas, moles, and other tumors of the skin.
2. The management of contact dermatitis and other inflammatory skin disorders.
3. The recognition of the skin manifestations of systemic and infectious diseases.
4. Dermatopathology.
5. Surgical techniques used in dermatology.
Dermatologists also manage cosmetic disorders of the skin, including hair loss, scars, and the skin changes associated with aging.
Dermatopathologist: A dermatopathologist is expert in the microscopic diagnosis of diseases of the skin, including infectious, immunologic, degenerative, and neoplastic diseases. This entails the examination and interpretation of specially prepared tissue sections, cellular scrapings, and smears of skin lesions by means of light microscopy, electron microscopy, and fluorescence microscopy.

Pediatric Dermatologist: A pediatric dermatologist is a dermatologist who has additional training and expertise in the evaluation and management of skin diseases which occur more commonly or exclusively in children. Examples include: all types of birthmarks, neonatal dermatology, genodermatoses, pediatric infections or inflammatory processes and skin diseases in children with complex medical conditions requiring coordinated multispecialty care.

Dermatologist specializing in Clinical and Laboratory

Dermatological Immunology: A dermatologist who utilizes various specialized laboratory procedures to diagnose disorders characterized by defective responses of the body's immune system. An immunodermatologist also may provide consultation in the management of these disorders and administer specialized forms of therapy for these diseases.
Disclaimer - The contents of this site are for informational purposes only. Always seek the advice of a qualified physician for any doubts. 
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