Asbestos fibers in para-aortic and mesenteric lymph nodes

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AMERICAN JOURNAL OF INDUSTRIAL MEDICINE 52:464–470 (2009)

Asbestos Fibers in Para-Aortic and Mesenteric Lymph Nodes Toomas Uibu, MD,1 Esa Vanhala, MSc,2 Antti Sajantila, PhD,3 Philippe Lunetta, ¨ivi Ma ¨kela ¨-Bengs, MD,3 Sirkka Goebeler, MD,4 Matti Ja ¨ntti, MD,4 and Pa 2 Antti Tossavainen, DTech

MD,

3

Background Asbestos fibers are known to accumulate in lung parenchyma and thoracic lymph nodes, but their presence and translocation into the extrapulmonary tissues need clarification. We assessed the presence of asbestos in the para-aortic (PA) and mesenteric (ME) lymph nodes. Methods PA and ME lymph nodes and lung tissue from 17 persons who underwent medicolegal autopsy for suspicion of asbestos-related disease and from five controls were analyzed for asbestos fibers using transmission electron microscopy. Results High concentrations of amphibole asbestos fibers were detected in several lung tissue samples and in the respective PA and ME lymph nodes. The mean concentration for the 10 persons with a lung asbestos content of 1 million fibers/g of dry tissue (f/g) was 0.85 (
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