CTICasesAluminosis with Dense Lymphadenopathy
Imaging findings
A separate case showed similarly densely attenuating (bright) intrathoracic lymph nodes on CT related to aluminum dust exposure, without underlying lung nodules or parenchymal disease.
Key takeaways
Aluminosis can produce markedly hyperattenuating lymph nodes from lymphatic deposition of aluminum dust in the absence of pulmonary nodules, illustrating that dense metallic lymphadenopathy from occupational dust exposure (as with coal, silica, or aluminum) can occur as an isolated finding before or without progression to parenchymal pneumoconiosis, and can mimic the peripheral, sub-pleural high-attenuation deposits and pseudo-plaque distribution described with other dust exposures.
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