Lung - nontumor
Pneumoconiosis
Siderosis (Welder's pneumoconiosis)


Topic Completed: 1 September 2011

Revised: 30 January 2019, last major update September 2011

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PubMed search: siderosis [title] pulmonary

Elliot Weisenberg, M.D.
Page views in 2018: 237
Page views in 2019 to date: 197
Table of Contents
Definition / general
Cite this page: Weisenberg E. Siderosis (Welder's pneumoconiosis). PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/lungnontumorsiderosis.html. Accessed October 15th, 2019.
Definition / general
  • Associated with iron workers and welders
  • Welders exposed to fumes with metal oxide particles 0.1 to 1.0 μm in diameter (iron, titanium, manganese and aluminum)
  • Lungs usually heavily pigmented without significant fibrosis
  • Aluminum (separate topic) has higher risk for significant pulmonary disease
  • Concurrent cigarette smoking, asbestos exposure may complicate clinical and pathologic findings
  • Micro: dust within interstitium, usually iron predominates
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