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Related Concept Videos

Skin Cancer01:30

Skin Cancer

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.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Skin Diseases and Disorders01:23

Skin Diseases and Disorders

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.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Accessory Structures of the Skin: Hair and Hair Follicles01:16

Accessory Structures of the Skin: Hair and Hair Follicles

Hair and hair follicles are integral components of the integumentary system. Hair is a filamentous structure composed mainly of a protein called keratin. It is found on the surface of the skin throughout the body, except for areas such as the palms of the hands and soles of the feet.
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...
Papillary Dermis01:11

Papillary Dermis

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.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen and...
Acne Infection01:27

Acne Infection

Acne is a multifactorial skin condition primarily affecting adolescents and young adults, with a global prevalence estimated to exceed 75% in this demographic. The condition is characterized by the formation of comedones (blackheads and whiteheads), papules, pustules, nodules, and, in severe cases, cysts, particularly in areas rich in sebaceous glands such as the face, neck, chest, and back. The pathogenesis involves increased sebum production, follicular hyperkeratinization, colonization by...
Accessory Structures of the Skin: Hair Growth and Types01:20

Accessory Structures of the Skin: Hair Growth and Types

Hair growth begins with the production of keratinocytes by the basal cells of the hair bulb. As new cells are deposited at the hair bulb, the hair shaft is pushed through the follicle toward the surface. Keratinization is completed as the cells are pushed to the skin surface to form the shaft of hair that is externally visible. The external hair is completely dead and composed entirely of keratin. Hair can be cut or shaven without damaging the hair structure because the cut is superficial. Most...

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Related Experiment Video

Updated: Jun 30, 2026

Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia
03:22

Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia

Published on: January 27, 2018

Actinic prurigo.

Gayle Ross1, Peter Foley, Chris Baker

  • 1Department of Dermatology, St Vincent's Hospital Melbourne, Fitzroy, Melbourne, Australia.

Photodermatology, Photoimmunology & Photomedicine
|September 25, 2008
PubMed
Summary
This summary is machine-generated.

Actinic Prurigo (AP) is a rare, debilitating skin condition triggered by sunlight. This review covers its features, diagnosis, and treatment, sharing experiences from an Australian unit.

Related Experiment Videos

Last Updated: Jun 30, 2026

Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia
03:22

Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia

Published on: January 27, 2018

Area of Science:

  • Dermatology
  • Photobiology
  • Immunology

Background:

  • Actinic Prurigo (AP) is an uncommon idiopathic photodermatosis.
  • AP presents a distinct clinical picture and can be severely debilitating for patients.
  • Understanding AP's characteristics is crucial for effective patient management.

Purpose of the Study:

  • To review the clinical features, investigation, and treatment of Actinic Prurigo.
  • To present the experience of an Australian photobiology unit in managing AP.
  • To enhance the understanding and management strategies for this rare photodermatosis.

Main Methods:

  • Literature review of clinical features, investigation, and treatment options for AP.
  • Retrospective analysis of patient cases managed at an Australian photobiology unit.
  • Clinical assessment and diagnostic procedures for photodermatoses.

Main Results:

  • Actinic Prurigo exhibits specific clinical manifestations requiring accurate diagnosis.
  • Various treatment modalities exist, with varying efficacy depending on individual patient response.
  • The Australian photobiology unit has gathered valuable experience in managing AP patients.

Conclusions:

  • Actinic Prurigo requires a comprehensive approach to diagnosis and management.
  • Photoprotection and targeted therapies are key components of AP treatment.
  • Sharing clinical experiences can improve outcomes for patients with Actinic Prurigo.