Penis - Fibrosis

Penis - Fibrosis. The large space (asterisk) is an artifact. The urethra is markedly dilated (arrow) in a male B6C3F1 mouse from a chronic study.
Figure 1 of 2
comment:
Fibrosis of the penis is characterized by abundant fibroblasts with collagen deposition that expands the tissue surrounding the penile urethra ( Figure 1

recommendation:
This lesion should be diagnosed and given a severity grade.references:
Web page last updated on: August 19, 2014