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Related Concept Videos

Pigmentation01:19

Pigmentation

The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
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...
Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

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.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
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...
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...
Pleiotropy01:33

Pleiotropy

Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...

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Related Experiment Video

Updated: May 29, 2026

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
06:15

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia

Published on: August 9, 2024

Benign pigmented lesions.

Inja Bogdan Allemann, David J Goldberg

    Current Problems in Dermatology
    |August 26, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Laser treatments can effectively address benign pigmented lesions. Understanding lesion biology, laser physics, and tissue interactions is key for safe and successful cosmetic dermatology procedures.

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    Area of Science:

    • Dermatology
    • Laser Physics
    • Aesthetic Medicine

    Background:

    • Benign pigmented lesions are common dermatological concerns.
    • Laser technology has advanced significantly for treating these lesions.
    • Patient consultations in cosmetic practices frequently involve pigmented lesions.

    Purpose of the Study:

    • To provide an overview of benign pigmented lesions treatable with lasers.
    • To discuss specific laser modalities used in treatment.
    • To emphasize the importance of understanding laser-tissue interactions.

    Main Methods:

    • Review of current laser technologies.
    • Analysis of benign pigmented lesion types.
    • Discussion of laser-tissue interaction principles.

    Main Results:

    • Effective and safe treatment of various benign pigmented lesions is possible with modern lasers.
    • Successful outcomes depend on a deep understanding of lesion biology and laser properties.
    • Specific lasers are indicated for different types of pigmented lesions.

    Conclusions:

    • Laser therapy offers effective solutions for benign pigmented lesions.
    • Knowledge of laser physics and biological interactions is critical for dermatologists.
    • Tailored laser selection ensures optimal treatment results in cosmetic dermatology.