Prehn's sign
Prehn's Sign
Prehn's sign (/prɛn/; named after American urologist John Prehn) is a clinical sign which is used in the diagnosis of testicular torsion and other forms of testicular pathology.
Pronunciation
The term is pronounced as "Pren".
Etymology
Prehn's sign is named after John Prehn, an American urologist who first described the sign in the medical literature.
Definition
Prehn's sign is a clinical sign that is used to differentiate between testicular torsion and epididymitis. It is positive if lifting the scrotum relieves pain, suggesting epididymitis, and negative if it does not, suggesting testicular torsion.
Related Terms
- Testicular Torsion: A medical emergency condition in which the spermatic cord that provides the blood supply to a testicle is twisted, cutting off the blood supply.
- Epididymitis: An inflammation of the epididymis, a tube located at the back of the testicles that stores and carries sperm.
- Scrotum: The bag of skin that holds and helps to protect the testicles.
- Spermatic Cord: The cord-like structure in males formed by the vas deferens and surrounding tissue that run from the abdomen down to each testicle.
See Also
External links
- Medical encyclopedia article on Prehn's sign
- Wikipedia's article - Prehn's sign
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