Bronchopneumonia

Bronchopneumonia

Infobox_Disease
Name = Bronchopneumonia


Caption =
DiseasesDB =
ICD10 = ICD10|J|18|0|j|09
ICD9 = ICD9|485
ICDO =
OMIM =
MedlinePlus =
eMedicineSubj =
eMedicineTopic =
MeshID = D001996

Bronchopneumonia (also known as lobular pneumonia) is a type of pneumonia characterized by multiple foci of isolated, acute consolidation, affecting one or more pulmonary 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 an inflammatory 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 more pulmonary 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, often bilateral. These lesions are 2-4 cm in diameter, grey-yellow, dry, often centered on a bronchiole, 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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Look at other dictionaries:

  • bronchopneumonia — [bräŋ΄kō no͞o mō′nyə, bräng΄kōnyo͞omō′nyə] n. inflammation of the bronchi accompanied by inflamed patches in the nearby lobules of the lungs …   English World dictionary

  • bronchopneumonia — noun Etymology: New Latin Date: 1858 pneumonia involving many relatively small areas of lung tissue …   New Collegiate Dictionary

  • bronchopneumonia — bronchopneumonic /brong koh noo mon ik, nyoo /, adj. /brong koh noo mohn yeuh, moh nee euh, nyoo /, n. Pathol. a form of pneumonia centering on bronchial passages. Also called bronchial pneumonia. [1855 60; BRONCHO + PNEUMONIA] * * * …   Universalium

  • bronchopneumonia — noun A bacterial infection of the lungs, characteristically showing numerous small foci of infection …   Wiktionary

  • bronchopneumonia — Acute inflammation of the walls of the smaller bronchial tubes, with varying amounts of pulmonary consolidation due to spread of the inflammation into peribronchiolar alveoli and the alveolar ducts; may become confluent or may be hemorrhagic …   Medical dictionary

  • bronchopneumonia — n. inflammation of the lungs …   English contemporary dictionary

  • bronchopneumonia — [ˌbrɒŋkə(ʊ)nju: məʊnɪə] noun inflammation of the lungs, arising in the bronchi or bronchioles …   English new terms dictionary

  • bronchopneumonia — bron·cho·pneumonia …   English syllables

  • bronchopneumonia — n.; see pneumonia …   The new mediacal dictionary

  • bronchopneumonia — bron•cho•pneu•mo•nia [[t]ˌbrɒŋ koʊ nʊˈmoʊn yə, ˈmoʊ ni ə, nyʊ [/t]] n. pat a form of pneumonia centering on bronchial passages • Etymology: 1855–60 …   From formal English to slang

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