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Related Concept Videos

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...
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 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...
Role of Skin in Vitamin D Synthesis01:23

Role of Skin in Vitamin D Synthesis

The skin plays a crucial role in the synthesis of vitamin D, a vital nutrient for various physiological processes in the body. Vitamin D is unique because it can be synthesized in the skin through a series of chemical reactions triggered by exposure to ultraviolet B (UVB) radiation from sunlight.
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin D3(cholecalciferol).
Infectious Diseases and Their Occurrence01:28

Infectious Diseases and Their Occurrence

Infectious diseases appear in populations through various transmission patterns, influenced by pathogen characteristics, population immunity, environmental conditions, and social behavior. Understanding these patterns is essential for effective public health surveillance and intervention. These categories—sporadic, outbreak, epidemic, pandemic, and endemic—help frame the nature and scope of disease events.Sporadic diseases occur irregularly and infrequently, without a predictable temporal or...
Toxidromes: Clinical Features01:30

Toxidromes: Clinical Features

Toxidromes are specific patterns of symptoms resulting from toxic substance exposure. They help in the identification and treatment of poisoning. The symptoms of each toxidrome group indicate poisoning by a certain class of chemicals or drugs.1. Sympathomimetic: Stimulates the sympathetic nervous system. Symptoms include agitation, increased heart rate (HR), blood pressure (BP), respiratory rate (RR), temperature, and pupil size. Drugs like cocaine and amphetamines, along with tremors and...

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[Requirements for mycological diagnostics in accordance with the guideline of the German Medical Association for quality assurance of medical laboratory tests].

Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete·2015
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[Tropical and travel-related dermatomycoses : Part 2: cutaneous infections due to yeasts, moulds, and dimorphic fungi].

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Related Experiment Video

Updated: May 22, 2026

The Goeckerman Regimen for the Treatment of Moderate to Severe Psoriasis
11:39

The Goeckerman Regimen for the Treatment of Moderate to Severe Psoriasis

Published on: July 11, 2013

[Vacation and tropical dermatoses].

M Fischer1, D Reinel

  • 1Abteilung Dermatologie, Venerologie und Allergologie und Fachbereich Tropenmedizin am Bernhard-Nocht-Institut, Bundeswehrkrankenhaus Hamburg, Lesserstr. 180, 22049, Hamburg, Deutschland. Fischer@bni-hamburg.de

Der Hautarzt; Zeitschrift Fur Dermatologie, Venerologie, Und Verwandte Gebiete
|April 26, 2012
PubMed
Summary
This summary is machine-generated.

Skin diseases are a common health issue for travelers returning from tropical regions, often caused by infections. Early clinical recognition of these tropical dermatological conditions is crucial for timely diagnosis and treatment.

Related Experiment Videos

Last Updated: May 22, 2026

The Goeckerman Regimen for the Treatment of Moderate to Severe Psoriasis
11:39

The Goeckerman Regimen for the Treatment of Moderate to Severe Psoriasis

Published on: July 11, 2013

Area of Science:

  • Tropical medicine
  • Dermatology
  • Infectious diseases

Context:

  • Skin diseases are the third most frequent cause of illness in travelers returning from the tropics.
  • A significant portion of these dermatological issues stem from classical tropical diseases, predominantly infectious in nature.

Purpose:

  • To highlight the importance of clinical presentation in diagnosing tropical skin diseases.
  • To emphasize that dermatological symptoms can indicate systemic tropical illnesses.

Summary:

  • Myiasis, cutaneous larva migrans, tungiasis, and cutaneous leishmaniasis are diagnosed clinically.
  • Systemic tropical diseases, like South African tick bite fever (Rickettsia africae), can manifest with skin lesions (eschar, rash) before serology confirms the diagnosis.
  • Less common conditions such as lymphatic filariasis and loiasis should be considered in long-term travelers and immigrants.

Impact:

  • Improved clinical recognition of tropical dermatological conditions.
  • Facilitates earlier diagnosis of both localized and systemic tropical diseases.
  • Enhances patient outcomes through prompt and accurate diagnosis.