Home
Chapter Home
Jobs
Conferences
Fellowships
Books
Advertisement
Lung-nontumor
Infections
Organizing pneumonia
Reviewers: Elliot Weisenberg, M.D. (see Reviewers page)
Revised: 21 September 2011, last major update September 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.
Clinical features
=========================================================================
● Response to infectious or inflammatory injury to the lung
● Pneumonia may resolve or organize
● Organizing pneumonia may simulate malignancy due to radiographic shadows and clinical cough, hemoptysis and weight loss
● May also simulate TB (Pathol Int 2011;61:486)
● Usually due to Streptococcus pneumoniae or Haemophilus influenza
Case reports
=========================================================================
● With subsequent adenocarcinoma (Interact Cardiovasc Thorac Surg 2011 Jul 26 [Epub ahead of print])
Gross description
=========================================================================
● Sharply outlined, firm area with preservation of lung pattern; extends to thickened pleura
Micro description
=========================================================================
● Exudate of fibrin and neutrophils transforming into fibromyxoid masses with histiocytes; may have necrotizing changes in bronchi
Micro images
=========================================================================
Various images
Marked interstitial inflammation and granulation tissue in air space; also atypical epithelial proliferation with abundant intracellular mucin (arrowhead).
Videos
=========================================================================
Differential Diagnosis
=========================================================================
● Cryptogenic organizing pneumonia (BOOP)
● Inflammatory pseudotumor
End of Lung-nontumor > Infections > Organizing pneumonia
This information is intended for physicians and related personnel, who understand that medical information is often imperfect, and must be interpreted in the context of a patient's clinical data using reasonable medical judgment. This website should not be used as a substitute for the advice of a licensed physician.
All information on this website is protected by copyright of PathologyOutlines.com, Inc. Information from third parties may also be protected by copyright. Please contact us at copyrightPathOut@gmail.com
with any questions (click here for other
contact information).