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Related Concept Videos

Pneumonia I: Introduction01:30

Pneumonia I: Introduction

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...
Pneumonia I: Introduction01:29

Pneumonia I: Introduction

Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...
Pneumonia II: Pathophysiology01:29

Pneumonia II: Pathophysiology

The pathophysiology of pneumonia involves the following steps:
Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Pneumonia III: Complications and Assessment01:30

Pneumonia III: Complications and Assessment

Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...

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Updated: Jun 3, 2026

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis
08:46

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis

Published on: August 12, 2020

Necrotizing pneumonia in infants.

Biserka Cicak1, Eva Verona, Iva Mihatov-Stefanović

  • 1University Department of Pediatrics, Sestre milosrdnice University Hospital, Zagreb, Croatia. biserka.cicak1@zg.t-com.hr

Acta Clinica Croatica
|April 6, 2011
PubMed
Summary
This summary is machine-generated.

Necrotizing pneumonia with pneumatocele formation is a rare complication of bacterial pneumonia. Conservative treatment in an immunocompetent infant led to complete regression of cavities and normal chest radiographs.

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A Neonatal BALB/c Mouse Model of Necrotizing Enterocolitis
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Last Updated: Jun 3, 2026

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis
08:46

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis

Published on: August 12, 2020

A Neonatal BALB/c Mouse Model of Necrotizing Enterocolitis
05:39

A Neonatal BALB/c Mouse Model of Necrotizing Enterocolitis

Published on: November 30, 2021

Area of Science:

  • Pediatric Pulmonology
  • Infectious Diseases

Background:

  • Community-acquired bacterial pneumonia typically has a good prognosis with antibiotic treatment.
  • Severe complications like necrotizing pneumonia with pneumatocele formation (cavitary necrosis) are rare.

Observation:

  • A case of an immunocompetent infant developing necrotizing pneumonia with pneumatocele formation during bacterial pneumonia treatment is presented.
  • The infant's condition manifested as severe disease with cavitary necrosis.

Findings:

  • Conservative management, without surgical intervention, was initiated for the necrotizing pneumonia.
  • Complete regression of the necrotic cavities was observed following conservative treatment.

Implications:

  • This case highlights that even severe necrotizing pneumonia with pneumatoceles can resolve completely with conservative care.
  • Normal chest radiography findings were achieved 2.5 months post-pneumatocele occurrence, suggesting favorable long-term outcomes.