- Bronchopneumonia
Infobox_Disease
Name = Bronchopneumonia
Caption =
DiseasesDB =
ICD10 = ICD10|J|18|0|j|09
ICD9 = ICD9|485
ICDO =
OMIM =
MedlinePlus =
eMedicineSubj =
eMedicineTopic =
MeshID = D001996Bronchopneumonia (also known as lobular pneumonia) is a type of
pneumonia characterized by multiple foci of isolated, acute consolidation, affecting one or morepulmonary lobes. It is one of two types of bacterial pneumonia as classified by gross anatomic distribution of consolidation (solidification), the other being "lobar pneumonia".In bacterial pneumonia, invasion of the lung
parenchyma by bacteria produces aninflammatory immune response . This response leads to a filling of the alveolar sacs with exudate. The loss of air space and its replacement with fluid is called consolidation. In bronchopneumonia, or lobular pneumonia, there are multiple foci of isolated, acute consolidation, affecting one or morepulmonary lobes.It should be noted that although these two patterns of pneumonia, lobar and lobular, are the classic anatomic categories of
bacterial pneumonia , in clinical practice the types are difficult to apply, as the patterns usually overlap. Bronchopneumonia (lobular) often leads to lobar pneumonia as the infection progresses. The same organism may cause one type of pneumonia in one patient, and another in a different patient. From the clinical standpoint, far more important than distinguishing the anatomical subtype of pneumonia, is identifying its causative agent and accurately assessing the extent of the disease.Pathology
Macroscopically: Multiple foci of consolidation are present in the basal lobes of the
human lung , oftenbilateral . These lesions are 2-4cm in diameter, grey-yellow, dry, often centered on abronchiole , are poorly delimited and have the tendency to confluence, especially in children.Microscopically: A focus of inflammatory condensation is centered on a
bronchiole with acute bronchiolitis (suppurative exudate - pus - in the lumen and parietal inflammation). Alveolar lumens surrounding the bronchiole are filled with neutrophils ("leukocytic alveolitis"). Massive congestion is present. Inflammatory foci are separated by normal, aerated parenchyma. Photos at: [http://www.pathologyatlas.ro/Bronchopneumonia%201.html 1]References
*cite book |author=Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. |title=Robbins and Cotran pathologic basis of disease |publisher=Elsevier Saunders |location=St. Louis, Mo |year=2005 |pages= |edition=7th ed. |isbn=0-7216-0187-1 |oclc= |doi= |accessdate=
External links
* [http://www.pathologyatlas.ro/Bronchopneumonia%201.html Atlas of Pathology]
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