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Skin Diseases and Disorders01:23

Skin Diseases and Disorders

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Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
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Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
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Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
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Reticular Dermis01:15

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The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
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The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
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The skin plays a crucial role in the synthesis of vitamin D, a vital nutrient for various physiological processes in the body. Vitamin D is unique because it can be synthesized in the skin through a series of chemical reactions triggered by exposure to ultraviolet B (UVB) radiation from sunlight.
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Desert Dermatoses (Thar Desert, India).

Col Manas Chatterjee1

  • 1Department of Dermatology, Institute of Naval Medicine, INHS Asvini, Mumbai, Maharashtra, India.

Indian Journal of Dermatology
|February 21, 2017
PubMed
Summary
This summary is machine-generated.

Desert living causes unique skin issues, with infections like fungal infections being most common due to water scarcity and heat. Other prevalent conditions include pigmentary disorders and skin tumors.

Keywords:
Climatedesert dermatosesenvironmentinfectionswater

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Area of Science:

  • Dermatology
  • Environmental Medicine

Background:

  • Deserts present unique environmental challenges, including extreme diurnal temperature variations and water scarcity.
  • These factors significantly impact daily life and predispose individuals to specific dermatological conditions.

Purpose of the Study:

  • To describe the spectrum of cutaneous changes and diseases prevalent in desert environments.
  • To identify dermatological conditions with a higher incidence in desert regions compared to other areas.

Main Methods:

  • Review of existing literature and clinical observations pertaining to desert dermatology.
  • Analysis of reported dermatological conditions and their prevalence in desert populations.

Main Results:

  • Infections, particularly fungal infections, are the most common dermatological issues, linked to poor hygiene and sweat retention.
  • Increased prevalence of pigmentary disorders, photodermatoses, leishmaniasis, skin tumors, and desert sweat dermatitis.
  • The desert environment fosters a wide array of dermatoses, some occurring at significantly higher rates.

Conclusions:

  • Desert environments necessitate specific adaptations to mitigate dermatological risks.
  • Understanding these prevalent conditions is crucial for effective diagnosis and management in arid regions.