International Journal of Thyroidology

Fig. 5.

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Fig. 5. Histopathological findings of Masson’s Trichrome staining (MT, ×200) in 4 cases with anthracosis. (A) This case and another case with a paratracheal mass had severe adhesion to adjacent tissues. A prominent increase in blue collagen fibers were seen on MT staining. (B) Two other cases of cervical anthracosis had no adhesion to adjacent tissues. These cases showed negative on MT staining (H&E stain, ×100).
Int J Thyroidol 2022;15:49-53
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