Items tagged “testes”
13 results found
Article
Non-seminomatous germ cell tumors
Non-seminomatous germ cell tumors (NSGCTs) are one of the main groups of germ cell tumors (the other being seminoma). Although they are made up of distinct histological entities, in general, they have similar radiographic appearances. They can, however, be found widely in the body, with variable...
Article
Varicocele
Varicocele is the dilatation of the pampiniform plexus of veins, a network of many small veins found in the male spermatic cord. It is the most frequently encountered mass of the spermatic cord.
Epidemiology
The estimated incidence is at ~15% of the general male population and ~40% of subferti...
Article
Testicular microlithiasis
Testicular microlithiasis is a relatively uncommon condition that represents the deposition of multiple tiny calcifications throughout both testes.
Diagnosis
The most common criterion for diagnosis on ultrasound is that of at least five microcalcifications in one testis although the European ...
Article
Testicular seminoma
Testicular seminomas are a type of germ cell tumor and the most common testicular tumor, accounting for ~45% of all primary testicular tumors. This article concerns only testicular seminomas; however, seminomas can arise outside of the testis, most often within the anterior mediastinum (see arti...
Article
Testicular teratoma
Testicular teratoma, unlike ovarian teratoma, is often aggressive in its biological behavior, and often exists as part of testicular mixed germ cell tumors.
Epidemiology
Pure testicular teratomas account for only 4-9% of all testicular tumors. A similar number are seen in the context of test...
Article
Testicular mixed germ cell tumors
Testicular mixed germ cell tumors are, as the name suggests, testicular tumors composed of two or more types of germ cell tumor. They are considered to be part of non-seminomatous germ cell tumors, as it is that component which dictates prognosis and treatment.
Overall they account for over 10...
Article
Testicular adrenal rests
Testicular adrenal rests are a rare cause of a testicular mass.
Terminology
Testicular adrenal rests can be known by a variety of terms 2:
testicular adrenal rest tumor (TART)
testicular adrenal rest tissue
testicular tumor of the adrenogenital syndrome
testicular adrenal-like tissue
Epid...
Article
Adenomatoid tumors of the scrotum
Adenomatoid tumors of the scrotum are benign, solid extratesticular lesions that can originate from the epididymis, tunica vaginalis, or spermatic cord (90% derived from the funiculus).
Epidemiology
They are the most common extratesticular neoplasm, and most common tumor of the epididymis, and...
Article
Epididymitis
Epididymitis (plural: epididymitides) refers to inflammation of the epididymis and may be associated with inflammation extending to the testis, in which case the term epididymo-orchitis is used. This should be distinguished from isolated orchitis, which is, by comparison, much less common.
Epi...
Article
Testicular germ cell tumors
Testicular germ cell tumors account for 90% of primary tumors of the testes. They are the most common nonhaematologic malignancy in men 15-49 years old.
They are divided into:
testicular seminoma: 40% of germ cell tumors 1
non-seminomatous germ cell tumor: 60% of germ cell tumors
testicular...
Article
Bilobed testis
Bilobed testis, also known as incomplete unilateral polyorchidism, is a very rare congenital variant in children, and considered to be an incomplete form of polyorchidism.
Epidemiology
Associations
malignancy
cryptorchidism
inguinal hernia
hydrocele
infertility
varicocele
testicular tor...
Article
Tunica vaginalis testis mesothelioma
Tunica vaginalis testis mesothelioma refers to mesothelioma arising from the tunica vaginalis.
Epidemiology
Malignant mesothelioma originating from the tunica vaginalis is extremely rare.
Clinical presentation
Patients usually present with enlarging or recurrent hydrocele, or less frequen...
Article
Testicular lymphoma
Testicular lymphoma is an uncommon testicular malignancy. Lymphoma can involve the testes in three ways:
primary site of extranodal disease (primary testicular lymphoma)
secondary involvement of systemic disease
primary manifestation of subclinical systemic disease
This article is c...
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