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Nylon flock-associated interstitial lung disease.

Authors
Eschenbacher-WL; Kreiss-K; Loucheed-MD; Pransky-GS; Day-B; Castellan-RM
Source
Am J Respir Crit Care Med 1999 Jun; 159(6):2003-2008
NIOSHTIC No.
20000847
Abstract
A work-related interstitial lung disease has been diagnosed in workers at five nylon flock facilities in three different states and a Canadian province. The National Institute for Occupational Safety and Health hosted a workshop at which consulting pulmonary pathologists reviewed lung tissue samples from all the cases for which lung biopsy material was available(15 of 20 cases known in January 1998). After independent review and scoring of these lung tissue specimens, the pathologists reached consensus that the histopathological findings revealed a characteristic lesion-a lymphocytic bronchiolitis and peribronchiolitis with lymphoid hyperplasia represented by lymphoid aggregates. The pathologists noted that the pathological findings were distinctive when compared with known lung conditions. The clinical presentation for the cases generally included cough, dyspnea, restrictive ventilatory defect with reduction in diffusing capacity, and interstitial markings on chest radiographs or high-resolution computed tomography (HRCT) scans. Six of the cases improved after removal from workplace exposure without medical treatment. Six others, who had recovered with medical treatment and removal from the workplace, had relapses in both symptoms and objective findings after attempting to return to nylon flock work. With this and other evidence supporting the existence of chronic interstitial pneumonitis associated with nylon flock processing, workshop participants recommended surveillance for early identification of affected workers and their removal from further workplace exposure.
Keywords
Pulmonary-system-disorders; Lung-fibrosis; Lung-disorders; Fabrics; Chest-X-rays; Lung-disease; Respiratory-system-disorders
Contact
William L. Eschenbacher, M.D., DRDS/NIOSH, MS 240, 1095 Willowdale Road, Morgantown, WV 26505-2888
CODEN
AJCMED
Publication Date
19990601
Document Type
Journal Article
Email Address
wae7@cdc.gov
Fiscal Year
1999
NTIS Accession No.
NTIS Price
Issue of Publication
6
ISSN
1073-449X
NIOSH Division
DRDS
Source Name
American Journal of Respiratory and Critical Care Medicine
State
WV; MA
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