Question:hard
The Grayhack shunt is established between:
The Grayhack shunt is established between:
Show Hint
It is a venous shunt for priapism that drains into a leg vein.
Updated On: Jun 24, 2026
- Corpora cavernosa and corpus spongiosum
- Corpora cavernosa and saphenous vein
- Corpora cavernosa and dorsal vein
- Corpora cavernosa and glans
Show Solution
The Correct Option is B
Solution and Explanation
This eponym question is about the surgical drainage routes for stubborn ischaemic priapism, where blood is stuck in the corpora cavernosa and must be let out. Surgeons have built several named shunts, and each is defined by what the cavernosa are connected to.
Group them by destination. If you connect the cavernosa to the glans, you have a distal shunt (Winter, Ebbehoj, Al-Ghorab). If you connect them to the corpus spongiosum, that is a proximal shunt (Quackels). If you route the trapped blood into a vein, that is a venous shunt, and there are two classic ones: the dorsal vein version (Barry) and the saphenous vein version, which is the Grayhack shunt.
So Grayhack specifically joins a corpus cavernosum to the long saphenous vein, draining the cavernosal blood into the femoral venous system and decompressing the erection.
Checking the other options confirms this. Cavernosa to spongiosum is Quackels, cavernosa to dorsal vein is Barry, and cavernosa to glans is the distal group. The saphenous vein connection is the unique signature of Grayhack.
\[\boxed{\text{Corpora cavernosa and saphenous vein}}\]
Group them by destination. If you connect the cavernosa to the glans, you have a distal shunt (Winter, Ebbehoj, Al-Ghorab). If you connect them to the corpus spongiosum, that is a proximal shunt (Quackels). If you route the trapped blood into a vein, that is a venous shunt, and there are two classic ones: the dorsal vein version (Barry) and the saphenous vein version, which is the Grayhack shunt.
So Grayhack specifically joins a corpus cavernosum to the long saphenous vein, draining the cavernosal blood into the femoral venous system and decompressing the erection.
Checking the other options confirms this. Cavernosa to spongiosum is Quackels, cavernosa to dorsal vein is Barry, and cavernosa to glans is the distal group. The saphenous vein connection is the unique signature of Grayhack.
\[\boxed{\text{Corpora cavernosa and saphenous vein}}\]
Was this answer helpful?
0
