Fig. 3

Analysis of tissue mineral fiber content. a Scanning electron microscopy (SEM) images of chrysotile asbestos fibers identified in tissue adjacent to laryngeal squamous cell carcinoma tumor in three cases with a history of occupational asbestos exposure: HN2, HN3, and HN6. b The corresponding energy dispersive X-ray analyzer (EDXA) spectrum consistent with chrysotile asbestos fibers