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Related Concept Videos

Pneumonia II: Pathophysiology01:29

Pneumonia II: Pathophysiology

429
The pathophysiology of pneumonia involves the following steps:
429
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.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
302
Acute Pyelonephritis I: Introduction01:27

Acute Pyelonephritis I: Introduction

37
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...
37
Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

32
Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
32
Pneumonia III: Complications and Assessment01:30

Pneumonia III: Complications and Assessment

366
Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:
366

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Related Experiment Video

Updated: Aug 25, 2025

Murine Oropharyngeal Aspiration Model of Ventilator-associated and Hospital-acquired Bacterial Pneumonia
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Parvimonas micra Causing Emphysematous Osteomyelitis: A Case Report.

James Ghosen1, Christopher Lucasti2, Susan Daoust2

  • 1University at Buffalo Jacobs School of Medicine, Buffalo, New York.

JBJS Case Connector
|October 14, 2022
PubMed
Summary

This case study details emphysematous osteomyelitis (EO) caused by Parvimonas micra in a 67-year-old. Aggressive surgical treatment and an antibiotic rod led to complete resolution.

Area of Science:

  • Orthopedic Surgery
  • Infectious Diseases
  • Microbiology

Background:

  • Emphysematous osteomyelitis (EO) is a rare bone infection characterized by gas formation within the bone or surrounding soft tissues.

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  • Parvimonas micra is an anaerobic Gram-negative coccus, typically found in oral and upper respiratory tracts, rarely implicated in deep bone infections.