Differential Diagnosis for Enlarged Testicle
- Single most likely diagnosis
- Epididymitis: This is an inflammation of the epididymis, a tube at the back of the testicle that stores and carries sperm. It is often caused by a bacterial infection and can cause the testicle to become enlarged, painful, and swollen.
- Other Likely diagnoses
- Hydrocele: A condition where fluid accumulates in the scrotum, causing the testicle to become enlarged. It can be caused by injury, infection, or inflammation.
- Varicocele: An enlargement of the veins within the scrotum, similar to varicose veins. It can cause the testicle to become enlarged and is often associated with infertility.
- Testicular torsion: A condition where the spermatic cord becomes twisted, cutting off the blood supply to the testicle. It is a medical emergency and can cause the testicle to become enlarged and painful.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Testicular cancer: Although rare, testicular cancer can cause an enlarged testicle. It is essential to rule out this diagnosis, as early detection and treatment are crucial for survival.
- Orchitis: An inflammation of the testicle, often caused by a bacterial or viral infection. If left untreated, it can lead to serious complications, such as infertility or testicular atrophy.
- Rare diagnoses
- Spermatocele: A cystic structure that forms on the epididymis, which can cause the testicle to become enlarged.
- Cystic dysplasia of the testis: A rare congenital condition where the testicle develops abnormally, leading to an enlarged testicle.
- Testicular lymphoma: A rare type of cancer that affects the testicle, which can cause it to become enlarged.