Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Review and Preview01:10

Review and Preview

8.3K
In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
8.3K
Review and Preview01:13

Review and Preview

10.9K
Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
10.9K
Ethics in Research01:56

Ethics in Research

25.4K
Today, scientists agree that good research is ethical in nature and is guided by a basic respect for human dignity and safety. However, this has not always been the case. Modern researchers must demonstrate that the research they perform is ethically sound.
25.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Beyond the scalpel: rare and experimental nonsurgical treatments for basal cell carcinoma.

Dermatology online journal·2026
Same author

Primary Cutaneous Cryptococcosis in Immunocompetent Patients: Recognition and Management.

American journal of clinical dermatology·2026
Same author

Charting new territories in cardiac care intensive care rehabilitation and the enduring impact on post-acute cardiac event outcomes.

European heart journal. Acute cardiovascular care·2026
Same author

Occupational Risk of Sexually Transmitted Infections in Aesthetic Dermatology and Dermatologic Surgery: Evidence and Prevention.

Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.]·2026
Same author

Ramadan and isotretinoin initiation: When deferral is the ethical choice.

Journal of the American Academy of Dermatology·2026
Same author

Beyond the ICU: Designing Systems of Recovery for Cardiogenic Shock Survivors.

Circulation·2026

Related Experiment Video

Updated: Jan 23, 2026

Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways
08:21

Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways

Published on: April 7, 2023

2.3K

Ashy dermatosis: a review.

Khoa Nguyen, Amor Khachemoune1

  • 1Veterans Affairs Medical Center, Brooklyn, NY SUNY Downstate, Department of Dermatology, Brooklyn, NY. amorkh@gmail.com.

Dermatology Online Journal
|June 21, 2019
PubMed
Summary

Ashy dermatosis presents as asymptomatic gray macules, primarily affecting individuals with darker skin tones. Further research is crucial for understanding its unknown causes and establishing effective treatments.

Area of Science:

  • Dermatology
  • Pathology

Background:

  • Ashy dermatosis is a skin condition characterized by asymptomatic, symmetrically distributed gray macules.
  • It predominantly affects individuals with Fitzpatrick phototypes III-V skin.
  • The exact etiology remains unknown, with potential triggers including drugs, infections, and genetics.

Purpose of the Study:

  • To provide a comprehensive review of ashy dermatosis, covering its history, clinical and histopathological features, pathogenesis, differential diagnosis, and management.
  • To highlight the need for increased clinician awareness and further research into the etiology and treatment of this condition.
  • To propose an alternative name, 'macular hyperpigmentation of indeterminate etiology,' reflecting its clinical presentation and uncertain cause.

Main Methods:

  • This review synthesizes existing literature on ashy dermatosis.

More Related Videos

Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy
10:23

Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy

Published on: June 23, 2023

2.7K

Related Experiment Videos

Last Updated: Jan 23, 2026

Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways
08:21

Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways

Published on: April 7, 2023

2.3K
Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy
10:23

Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy

Published on: June 23, 2023

2.7K
  • It compiles information on clinical presentation, histology, pathogenesis, differential diagnosis, and treatment options.
  • The review also discusses the implications of the condition and suggests a new nomenclature.

    • Main Results:

    • Ashy dermatosis presents with characteristic gray macules on the trunk, neck, face, and extremities.
    • Current treatments lack a gold standard, but clofazimine has shown the most success, with other options including topical tacrolimus, dapsone, phototherapy, and isotretinoin.
    • The condition is mainly a cosmetic concern but can cause significant distress, particularly in individuals with darker skin.

    Conclusions:

    • Ashy dermatosis requires greater clinical recognition and dedicated research to elucidate its etiology and optimize treatment strategies.
    • The proposed name 'macular hyperpigmentation of indeterminate etiology' better reflects the current understanding of the condition.
    • This review serves as a consolidated resource for clinicians managing patients with ashy dermatosis.