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Related Concept Videos

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Skin Diseases and Disorders

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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.
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Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
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Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
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Pulmonary Tuberculosis IV01:26

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Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
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Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
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Cutaneous Coccidiomycosis.

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Coccidiomycosis, a fungal lung infection, can rarely present as a skin rash. This case highlights a disseminated infection in a patient outside endemic areas, emphasizing the need for broader diagnostic considerations.

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Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Dermatology

Background:

  • Coccidiomycosis is a pulmonary infection caused by Coccidioides fungi endemic to specific regions.
  • Infections typically manifest with flu-like symptoms; cutaneous involvement is uncommon.

Observation:

  • A 60-year-old female presented with a 3-month history of a mild, non-pruritic, erythematous rash on her arms and legs.
  • The patient was located outside of the typical endemic regions for Coccidioides.

Findings:

  • Punch biopsies confirmed disseminated coccidiomycosis.
  • This represents a rare, non-endemic presentation of the fungal infection.

Implications:

  • Cutaneous manifestations of coccidiomycosis can indicate disseminated disease and poorer prognosis.
  • Clinicians should consider coccidiomycosis in the differential diagnosis of unexplained rashes, even in non-endemic areas.