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Case 4:
Clinical History:
A 2 year old Standardbred stallion was presented for a
large pendulous scrotum. Castration was performed. The testes were of
soft consistency and there were prominent tortuous blood vessels beneath
the tunica albuginea. The spermatic cord and soft tissues of the pampiniform
plexus were severely oedematous bilaterally.
This is a low power view of the pampiniform plexus.
Most of the sectioned blood vessels are arteries. Compare the thickness
of their walls with those of the veins (top right).
This is a medium power view of an artery. Note the thickening
and “onion-skinning” of the tunica adventitia and the cellular
infiltrates in the vessel wall and surrounding connective tissues.
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