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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...
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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Open Angle Glaucoma: Treatment

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Accessory Structures of the Skin: Hair and Hair Follicles

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Acne Infection

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Related Experiment Video

Updated: May 30, 2026

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
06:41

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis

Published on: March 9, 2015

Alopecia: evaluation and treatment.

Katherine A Gordon1, Antonella Tosti

  • 1Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.

Clinical, Cosmetic and Investigational Dermatology
|August 12, 2011
PubMed
Summary

This review covers common hair loss conditions, differentiating between scarring and non-scarring types. It details diagnostic methods and treatment options for various alopecias.

Keywords:
alopeciaevaluationtreatment

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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
  • Trichology

Background:

  • Hair loss, or alopecia, is a frequent dermatological complaint.
  • Patients present with varied symptoms, including increased shedding and localized or diffuse hair thinning.
  • Distinguishing between cicatricial (scarring) and noncicatricial (non-scarring) alopecia is crucial for diagnosis and management.

Purpose of the Study:

  • To outline clinical approaches for evaluating patients with alopecia.
  • To detail diagnostic tests essential for identifying hair loss causes.
  • To review current treatments for common noncicatricial and cicatricial alopecias.

Main Methods:

  • Literature review of clinical guidelines and research on alopecia.
  • Analysis of diagnostic strategies for differentiating hair loss types.
  • Synthesis of treatment modalities for specific alopecia conditions.

Main Results:

  • Effective evaluation involves a combination of clinical assessment and targeted diagnostic tests.
  • Noncicatricial alopecias like androgenetic alopecia, alopecia areata, and telogen effluvium have distinct management plans.
  • Cicatricial alopecias, including lichen planopilaris, frontal fibrosing alopecia, and discoid lupus erythematosus, require specific therapeutic approaches.

Conclusions:

  • A systematic approach to diagnosis is key for managing diverse hair loss presentations.
  • Understanding the differences between scarring and non-scarring alopecia guides effective treatment selection.
  • This review provides a framework for clinicians managing patients with common forms of alopecia.