Abstract:
BACKGROUND:Pleuroparenchymal fibroelastosis (PPFE) is a rare form of interstitial pneumonia and sometimes coexists with a histologic usual interstitial pneumonia (UIP) pattern. This study aimed to describe the distinct clinical features of PPFE with UIP pattern compared with idiopathic pulmonary fibrosis (IPF). METHODS:We conducted a retrospective review of the medical records of 110 consecutive patients with IPF with a histologic UIP pattern on surgical lung biopsy specimen. Patients meeting radiologic criteria for the diagnosis of PPFE based on high-resolution CT scan and with a histologic UIP pattern were included. RESULTS:Nine of eleven patients meeting radiologic criteria for the diagnosis of PPFE were histologically confirmed as having PPFE with UIP pattern. The PPFE with UIP pattern group showed a significantly higher residual volume (1.8 L vs 1.3 L, P < .01), higher Paco2 (44.6 mm Hg vs 41.7 mm Hg, P = .04), and higher complication rate of pneumothorax and pneumomediastinum than the 99 patients with IPF/UIP. The ratio of anteroposterior to transthoracic diameter in patients with PPFE with UIP pattern was significantly lower than that in patients with IPF/UIP (P = .04). Survival time tended to be shorter in patients with PPFE with UIP pattern. CONCLUSIONS:The results support the view that PPFE with UIP pattern is a disease entity distinct from IPF/UIP and may well be classified as PPFE.
journal_name
Chestjournal_title
Chestauthors
Oda T,Ogura T,Kitamura H,Hagiwara E,Baba T,Enomoto Y,Iwasawa T,Okudela K,Takemura T,Sakai F,Hasegawa Ydoi
10.1378/chest.13-2866subject
Has Abstractpub_date
2014-11-01 00:00:00pages
1248-1255issue
5eissn
0012-3692issn
1931-3543pii
S0012-3692(15)52392-1journal_volume
146pub_type
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