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Epididymitis is a medical condition characterized by inflammation of the epididymis, a curved structure at the back of the testicle. [1] Onset of pain is typically over a day or two. [1] The pain may improve with raising the testicle. [1] Other symptoms may include swelling of the testicle, burning with urination, or frequent urination. [1]
Relative incidences of testicular tumors, showing seminoma at bottom left. [2]A seminoma is a germ cell tumor of the testicle or, more rarely, the mediastinum or other extra-gonadal locations.
It mainly presents in the genital tract, in regions such as the testis [1] and epididymis. [2] Because of this, researchers had a difficult time concluding that type of tumor has a mesothelial origin. Immunohistochemistry staining of tumor samples show that it is indeed positive for mesothelial-markers (calretinin, WT1, and CK6). [3]
In most patients with testicular cancer, the disease is cured readily with minimal long-term morbidity. While treatment success depends on the stage, the average survival rate after five years is around 95%, and stage 1 cancer cases, if monitored properly, have essentially a 100% survival rate.
The term epididymal hypertension is derived from the epididymis, a part of the male reproductive system. [8] The term is also applied to females despite the lack of an epididymis in female anatomy. Professor Caroline Pukall, who co-wrote the first in-depth study on EH, has suggested using the term throbbing crotch syndrome. [9]
The epididymis is present in male reptiles, birds, mammals, and cartilaginous fish. [1] The caput epididymidis is fused to the testis in eutherian mammals, but not in marsupials. [13] In reptiles, there is an additional canal between the testis and the head of the epididymis and which receives the various efferent ducts.
Spermatocele is a fluid-filled cyst that develops in the epididymis. [3] The fluid is usually a clear or milky white color and may contain sperm. [4] Spermatoceles are typically filled with spermatozoa [5] and they can vary in size from several millimeters to many centimeters.
Chronic scrotal pain (pain for greater than 3 months) may occur due to a number of underlying conditions. [3] It occurs in 15-19% of men post vasectomy, due to infections such as epididymitis, prostatitis, and orchitis, as well as varicocele, hydrocele, spermatocele, polyarteritis nodosa, testicular torsion, previous surgery and trauma. [3]