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Related Concept Videos

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...
Staphylococcal Skin Infections01:29

Staphylococcal Skin Infections

Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
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: Sebaceous Glands01:21

Accessory Structures of the Skin: Sebaceous Glands

A sebaceous gland is a type of oil gland found almost all over the skin ( except palms and soles) and helps lubricate and waterproof the skin and hair. Most sebaceous glands are associated with hair follicles. They generate and excrete sebum, a mixture of lipids, onto the skin surface, thereby naturally lubricating the dry and dead layer of keratinized cells of the stratum corneum, keeping it pliable.
These glands that produce the oils on the skin and hair are holocrine glands. The mature...
The Skin Microbiota01:27

The Skin Microbiota

The human skin serves as a complex ecosystem inhabited by a diverse community of microorganisms, including bacteria, fungi, and viruses. This microbiome plays a critical role in maintaining skin health and defending against pathogenic invaders. The composition of microbial communities varies significantly across different regions of the body, influenced primarily by the local levels of moisture and sebum.Regional Variation in Skin MicrobiotaCutibacterium acnes predominantly colonizes sebaceous...
Reticular Dermis01:15

Reticular Dermis

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.
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...

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Deep Dermal Injection As a Model of Candida albicans Skin Infection for Histological Analyses
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Published on: June 13, 2018

Folliculitis decalvans.

Nina Otberg1, Hoon Kang, Abdullateef A Alzolibani

  • 1Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada. ninaotberg@gmx.com

Dermatologic Therapy
|August 22, 2008
PubMed
Summary
This summary is machine-generated.

Folliculitis decalvans is a rare inflammatory scalp condition affecting middle-aged adults, often linked to Staphylococcus aureus and immune response. Early diagnosis and management are key to treating this disfiguring alopecia.

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Area of Science:

  • Dermatology
  • Pathology

Background:

  • Folliculitis decalvans is a rare, primary neutrophilic cicatricial alopecia.
  • It predominantly affects middle-aged adults, causing disfigurement.

Purpose of the Study:

  • To provide a practical approach to the diagnosis and management of folliculitis decalvans.
  • To review potential pathogenetic factors and treatment strategies.

Main Methods:

  • Clinical presentation analysis.
  • Histopathological examination of lesions.
  • Review of existing literature on pathogenesis and treatment.

Main Results:

  • Folliculitis decalvans presents with follicular pustules, erythema, and crusts, primarily on the vertex and occipital scalp.
  • Histology shows a neutrophilic infiltrate, progressing to include lymphocytes and plasma cells.
  • Staphylococcus aureus and a compromised host immune response are implicated in its development.

Conclusions:

  • Effective management requires addressing Staphylococcus aureus and employing anti-inflammatory agents.
  • Understanding the pathogenesis aids in developing targeted treatment options.