Bronchiolitis obliterans organizing pneumonia formerly synonym for COP, but term no longer used
Definitions
OP, AFOP, and GOP: Related histologic patterns of lung reaction resulting from variety of insults
AFOP considered acute pattern similar to diffuse alveolar damage (DAD)
Subacute cases of AFOP may behave clinically like OP
COP: Idiopathic OP
Nonspecific pulmonary reaction of unknown etiology
IMAGING
General Features
Radiographic Findings
CT Findings
Nuclear Medicine Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Diagnosis
Natural HIstory and Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Selected References
Saxena P et al: Acute fibrinous and organizing pneumonia: A rare form of nonbacterial pneumonia. Indian J Crit Care Med. 20(4):245-7, 2016
Feinstein MB et al: A comparison of the pathological, clinical and radiographical, features of cryptogenic organising pneumonia, acute fibrinous and organising pneumonia and granulomatous organising pneumonia. J Clin Pathol. 68(6):441-7, 2015
Kligerman SJ et al: From the radiologic pathology archives: organization and fibrosis as a response to lung injury in diffuse alveolar damage, organizing pneumonia, and acute fibrinous and organizing pneumonia. Radiographics. 33(7):1951-75, 2013
Beasley MB: The pathologist's approach to acute lung injury. Arch Pathol Lab Med. 134(5):719-27, 2010
Beasley MB et al: Acute fibrinous and organizing pneumonia: a histological pattern of lung injury and possible variant of diffuse alveolar damage. Arch Pathol Lab Med. 126(9):1064-70, 2002
Yoshinouchi T et al: Clinicopathological study on two types of cryptogenic organizing pneumonitis. Respir Med. 89(4):271-8, 1995
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Pathology
Clinical Issues
Diagnostic Checklist
TERMINOLOGY
Abbreviations
Organizing pneumonia (OP)
Cryptogenic organizing pneumonia (COP)
Acute fibrinous and organizing pneumonia (AFOP)
Granulomatous organizing pneumonia (GOP)
Synonyms
Bronchiolitis obliterans organizing pneumonia formerly synonym for COP, but term no longer used
Definitions
OP, AFOP, and GOP: Related histologic patterns of lung reaction resulting from variety of insults
AFOP considered acute pattern similar to diffuse alveolar damage (DAD)
Subacute cases of AFOP may behave clinically like OP
COP: Idiopathic OP
Nonspecific pulmonary reaction of unknown etiology
IMAGING
General Features
Radiographic Findings
CT Findings
Nuclear Medicine Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Diagnosis
Natural HIstory and Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Selected References
Saxena P et al: Acute fibrinous and organizing pneumonia: A rare form of nonbacterial pneumonia. Indian J Crit Care Med. 20(4):245-7, 2016
Feinstein MB et al: A comparison of the pathological, clinical and radiographical, features of cryptogenic organising pneumonia, acute fibrinous and organising pneumonia and granulomatous organising pneumonia. J Clin Pathol. 68(6):441-7, 2015
Kligerman SJ et al: From the radiologic pathology archives: organization and fibrosis as a response to lung injury in diffuse alveolar damage, organizing pneumonia, and acute fibrinous and organizing pneumonia. Radiographics. 33(7):1951-75, 2013
Beasley MB: The pathologist's approach to acute lung injury. Arch Pathol Lab Med. 134(5):719-27, 2010
Beasley MB et al: Acute fibrinous and organizing pneumonia: a histological pattern of lung injury and possible variant of diffuse alveolar damage. Arch Pathol Lab Med. 126(9):1064-70, 2002
Yoshinouchi T et al: Clinicopathological study on two types of cryptogenic organizing pneumonitis. Respir Med. 89(4):271-8, 1995
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