Male Fisher 344 rats, ~ 2 years old

SIGNALMENT: (age, breed, sex, species, and scientific name) 
Male Fisher 344 rats, approximately 2 years old

TREATMENT PROTOCOL: (including test compound)

The photomicrographs are from rats exposed chronically (lifetime) to a diluted "compound" for 7 hr/day, 5 days/week at a target concentration of 7 mg/m3.

What's Your Diagnosis? Provide your possible etiologies in the comment section. 
Answers will be provided in September.

 

r085a.jpg

4x H&E 

r085as.jpg

40x H&E

r085c.jpg

10x H&E

r085d.jpg

20x H&E

 

r085e.jpg

2x H&E

r085f.jpg

2x H&E 

 

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Male Fisher 344 rats, ~ 2 years old