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Related Concept Videos

Pneumonia I: Introduction01:30

Pneumonia I: Introduction

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Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
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The treatment of pneumonia varies based on its severity and the causative pathogen. Here is a structured approach to managing pneumonia, integrating pharmaceutical and supportive care strategies.
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Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such...
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[Acute fibrinous and organizing pneumonia].

Cláudia Santos1, Fátima Fradinho2, Alexandra Catarino2

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Acute Fibrinous and Organizing Pneumonia (AFOP) is a distinct interstitial lung disease. This review and case study highlight its unique features compared to other acute lung injuries.

Keywords:
AFOPfibrin ballsorganizing pneumonia

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Area of Science:

  • Pulmonary Pathology
  • Histopathology
  • Interstitial Lung Diseases

Context:

  • Acute Fibrinous and Organizing Pneumonia (AFOP) is a distinct histologic pattern.
  • It presents with intra-alveolar fibrin and diffuse organizing pneumonia.
  • AFOP requires differentiation from other acute lung injury patterns like DAD, OP, and EP.

Purpose:

  • To review the literature on AFOP.
  • To describe a clinical case with unusual imaging and outcome.
  • To enhance understanding of this interstitial pulmonary disease.

Summary:

  • AFOP is characterized by fibrin "balls" and diffuse organizing pneumonia.
  • Symptoms can be acute or subacute.
  • This condition is histologically distinct from Diffuse Alveolar Damage (DAD), Organizing Pneumonia (OP), and Eosinophilic Pneumonia (EP).

Impact:

  • Improves diagnostic criteria for AFOP.
  • Highlights the importance of distinguishing AFOP from other acute lung conditions.
  • Provides insights into the clinical presentation and management of AFOP.