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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...
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...
Candidiasis01:20

Candidiasis

Candidiasis is a fungal infection caused by opportunistic species of Candida. It can affect various anatomical sites, including the skin, oral cavity, nails, and genitourinary tract. Among its forms, vaginal candidiasis is the most common type of mucosal infection. It typically results from the overgrowth of Candida albicans in the vaginal mucosa. Under normal conditions, C. albicans exists as a commensal organism within the vaginal microbiota, regulated by the dominance of lactobacilli, which...
Antifungal Agents01:15

Antifungal Agents

Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to cholesterol contributes to...
Assessment of Airway, Skin Color, and Use of Accessory Muscles01:30

Assessment of Airway, Skin Color, and Use of Accessory Muscles

A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
Introduction
The initial evaluation of a patient's respiratory system...
Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...

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Related Experiment Video

Updated: Jun 25, 2026

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
05:39

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus

Published on: May 16, 2025

[Tinea faciei, underrecognized because clinically misleading. 14 cases].

Hichem Belhadjali1, Amina Aounallah, Monia Youssef

  • 1Service de dermatologie, Hôpital Fattouma Bourguiba, Monastir 5000, Tunisia. belhadjalihichem@yahoo.fr

Presse Medicale (Paris, France : 1983)
|February 17, 2009
PubMed
Summary

Tinea Faciei (TF) is a facial fungal infection often misdiagnosed due to varied appearances, including Tinea incognito. Trichophyton Violaceum was unusually prevalent in this Tunisian study.

Related Experiment Videos

Last Updated: Jun 25, 2026

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
05:39

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus

Published on: May 16, 2025

Area of Science:

  • Dermatology
  • Mycology
  • Infectious Diseases

Context:

  • Tinea Faciei (TF) is a superficial fungal infection of facial skin.
  • It presents with diverse clinical manifestations, often leading to misdiagnosis.
  • Topical corticosteroid use can alter its presentation, creating Tinea incognito.

Purpose:

  • To evaluate the epidemiological, clinical, mycological, and therapeutic aspects of Tinea Faciei.
  • To highlight the challenges in diagnosing TF, especially atypical forms.

Summary:

  • A 5-year retrospective study in Tunisia identified 14 Tinea Faciei cases.
  • Typical TF occurred in 10 patients; 4 presented with Tinea incognito due to prior steroid use.
  • Direct microscopy and fungal cultures confirmed dermatophyte presence, with Trichophyton Violaceum being the most common agent found.

Impact:

  • This study underscores the importance of considering TF in facial rashes, even atypical ones.
  • It emphasizes the diagnostic impact of prior corticosteroid treatment.
  • Findings highlight a regional variation in causative fungal species, with T. Violaceum being unusually frequent.