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Difference between revisions of "Organizing pneumonia"
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→Masson body: +SO
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{{ Infobox diagnosis | {{ Infobox diagnosis | ||
| Name = {{PAGENAME}} | | Name = {{PAGENAME}} | ||
| Image = | | Image = Organizing pneumonia -- low mag.jpg | ||
| Width = | | Width = | ||
| Caption = | | Caption = Organizing pneumonia. [[H&E stain]]. | ||
| Synonyms = | | Synonyms = | ||
| Micro = | | Micro = distal airway disease -- airways plugged with organizing exudate (fluffy light-staining paucicellular regions with stellate cells); no hobnailing of pneumocytes; type 2 pneumocytes hyperplasia is absent | ||
| Subtypes = | | Subtypes = | ||
| LMDDx = | | LMDDx = [[diffuse alveolar damage]] (proliferative phase), [[bronchiolitis obliterans]]. | ||
| Stains = | | Stains = | ||
| IHC = | | IHC = | ||
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===Images=== | ===Images=== | ||
<gallery> | |||
Image: Organizing pneumonia -- very low mag.jpg | OP - very low mag. (WC/Nephron) | |||
Image: Organizing pneumonia -- low mag.jpg | OP - low mag. (WC/Nephron) | |||
Image: Organizing pneumonia - alt -- low mag.jpg | OP - low mag. (WC/Nephron) | |||
Image: Organizing pneumonia - alt - intermed mag.jpg | OP - intermed. mag. (WC/Nephron) | |||
Image: Organizing pneumonia -- intermed mag.jpg | OP - intermed. mag. (WC/Nephron) | |||
Image: Organizing pneumonia -- high mag.jpg | OP - high mag. (WC/Nephron) | |||
</gallery> | |||
===Masson body=== | |||
<gallery> | <gallery> | ||
Image:Masson_body_-_intermed_mag.jpg | Masson body - intermed. mag. (WC/Nephron) | Image:Masson_body_-_intermed_mag.jpg | Masson body - intermed. mag. (WC/Nephron) | ||
| Line 67: | Line 76: | ||
</gallery> | </gallery> | ||
www: | www: | ||
*[http://casereports.bmj.com/content/2011/bcr.11.2010.3483.full BOOP (bmj.com)]. | *[http://casereports.bmj.com/content/2011/bcr.11.2010.3483.full BOOP (bmj.com)]. | ||
*[http://www.flickr.com/photos/pulmonary_pathology/4733384977/ Masson body (flickr.com)]. | *[http://www.flickr.com/photos/pulmonary_pathology/4733384977/ Masson body (flickr.com)]. | ||
*[https://www.flickr.com/photos/pulmonary_pathology/3734401023 Organizing pneumonia (flicker.com)]. | |||
==Sign out== | |||
<pre> | |||
Lung, Right Lower Lobe, Open Lung Biopsy: | |||
- Organizing pneumonia. | |||
- Emphysematous changes. | |||
- NEGATIVE for significant pulmonary fibrosis. | |||
- NEGATIVE for malignancy. | |||
Comment: | |||
There is no evidence of granulomatous disease. | |||
</pre> | |||
===Micro=== | |||
Organizing pneumonia with well-formed Masson bodies is seen subpleural and peribronchial. It is pathcy and mild. Significant fibrosis is absent. Eosinophils are not readily apparent. | |||
==See also== | ==See also== | ||