Hello,

I am currently doing an exploratory study which requires me to section and stain lungs of mice, however this is new territory for me. This is a representative image of how my staining currently looks. Should this be considered artifacts from improper preservation or sectioning? Or is this indicative of dysplasia and lung inflammation?

After the necropsy, I place the lungs in 10% formalin and they are embedded between one day to one week from the necropsy date.

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