Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1995-8-15
pubmed:abstractText
Pulmonary neuroendocrine cell (PNEC) hyperplasia typically occurs as an adaptive response in persons living at high altitudes and as a reactive response in the setting of lung injury. However, previous studies suggest that PNEC hyperplasia can occur in the absence of preexisting lung disease and may even give rise to airway disease through the development of pulmonary tumorlets and airway fibrosis and perhaps the release of paracrine secretions. We describe a patient with diffuse PNEC proliferation of a probable hyperplastic nature developing in the absence of a chronic pulmonary disorder who presented clinically with an interstitial lung process. Open lung biopsy displayed a florid intraepithelial population of PNEC diffusely involving the distal airways and alveoli with desquamation and filling of alveolar spaces by nests of PNEC. The presence of alveolar thickening was attributable to the intraepithelial proliferation of PNEC associated with interstitial fibrosis and accounted for mild reductions in the pulmonary diffusing capacity. The neuroendocrine differentiation of this proliferation was evident by light microscopic and ultrastructural examination. The absence of airway fibrosis and pulmonary tumorlets was in agreement with the lack of clinical airway disease in this case. The intraepithelial growth and absence of parenchymal invasion in this lesion favor a diffuse, florid PNEC hyperplasia with mild dysplastic features over a pulmonary neuroendocrine neoplasm.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0147-5185
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
963-70
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Diffuse idiopathic pulmonary neuroendocrine cell proliferation presenting as interstitial lung disease.
pubmed:affiliation
Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.
pubmed:publicationType
Journal Article, Case Reports