Adenomatoid tumors of the scrotum
Citation, DOI, disclosures and article data
At the time the article was created The Radswiki had no recorded disclosures.
View The Radswiki's current disclosuresAt the time the article was last revised Ammar Ashraf had no financial relationships to ineligible companies to disclose.
View Ammar Ashraf's current disclosures- Adenomatoid tumors of the scrotum
- Scrotal adenomatoid tumour
- Scrotal adenomatoid tumours
- Scrotal adenomatoid tumor
- Scrotal adenomatoid tumors
- Adenomatoid tumour of the scrotum
- Adenomatoid tumor 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).
On this page:
Epidemiology
They are the most common extratesticular neoplasm, and most common tumor of the epididymis, and occur more often in the lower pole than in the upper pole by a ratio of 4:1.
Clinical presentation
Usually an incidental finding, adenomatoid tumors manifest as a small (usually under 2 cm), painless scrotal mass, with the majority diagnosed in patients aged 20-50 years. They are typically unilateral and occur more frequently on the left side.
When they grow non-invasively into the testicular parenchyma, they can simulate intratesticular disease.
Radiographic features
Ultrasound
- well-defined, usually oval extratesticular mass with variable echogenicity although most are isoechoic to the epididymis 6
- usually solid although can be completely cystic 6
- range in size from a few millimeters to a few centimeters
MRI
MR imaging can aid in determining the paratesticular origin of the lesion.
Signal characteristics
- T2: low signal intensity relative to the testicular parenchyma
- T1 C+ (Gd): show enhancement
Treatment and prognosis
They are benign with no reports of recurrence or metastatic disease after excision 5,6.
Differential diagnosis
General imaging differential considerations include:
- peritesticular lipoma
- peritesticular rhabdomyosarcoma
- peritesticular liposarcoma
- supernumerary testes: a rare condition in which more than two testes are present
- epididymitis
- scrotal tuberculosis
See also
References
- 1. Kim W, Rosen MA, Langer JE et-al. US MR imaging correlation in pathologic conditions of the scrotum. Radiographics. 27 (5): 1239-53. doi:10.1148/rg.275065172 - Pubmed citation
- 2. Patel MD, Silva AC. MRI of an adenomatoid tumor of the tunica albuginea. AJR Am J Roentgenol. 2004;182 (2): 415-7. AJR Am J Roentgenol (full text) - Pubmed citation
- 3. Garriga V, Serrano A, Marin A et-al. US of the tunica vaginalis testis: anatomic relationships and pathologic conditions. Radiographics. 2009;29 (7): 2017-32. doi:10.1148/rg.297095040 - Pubmed citation
- 4. Goldberg BB, McGahan JP. Atlas of ultrasound measurements. Mosby Inc. (2006) ISBN:032303229X. Read it at Google Books - Find it at Amazon
- 5. Srigley JR, Hartwick RW. Tumors and cysts of the paratesticular region. Pathol Annu. 1990;25 Pt 2: 51-108. Pubmed citation
- 6. Syed Ali Akbar, Tawfeeq Amjadali Sayyed, Syed Zafar Hasan Jafri, Farnaz Hasteh, James Simeon Adams Neill. Multimodality Imaging of Paratesticular Neoplasms and Their Rare Mimics1. (2003) RadioGraphics. doi:10.1148/rg.236025174
Related articles: Pathology: Genitourinary
- obstetrics
-
first trimester
- ultrasound findings in early pregnancy
- embryo/fetus
- beta-hCG levels
- confirming intrauterine gestation
- pregnancy of unknown location (PUL)
- first trimester vaginal bleeding
- early structural scan
- aneuploidy testing
-
second trimester
- fetal biometry
- amniotic fluid volume
- fetal morphology assessment
- soft markers
- amnioreduction
- Doppler ultrasound
- nuchal translucency
- 11-13 weeks antenatal scan
- chorionic villus sampling (CVS) and amniocentesis
- other
- placenta
- placental anatomy
- placental developmental abnormalities
- placenta previa
- spectrum of abnormal placental villous adherence
- abnormalities of cord insertion
- abruptio placentae
- placental pathology
- vascular pathologies of placenta
- placental infections
- placental masses
- molar pregnancy
- twin placenta
- miscellaneous
-
first trimester
- gynecology
- acute pelvic pain
- chronic pelvic pain
- uterus
- ovaries
- ovarian follicle
- ovarian torsion
- pelvic inflammatory disease
- ovarian cysts and masses
- paraovarian cyst
- polycystic ovaries
- ovarian hyperstimulation syndrome
- post-hysterectomy ovary
- cervix
- fallopian tube
- other
- male genital tract
- prostate gland
- transrectal ultrasound
- prostate tumors
- infections of the prostate
-
prostatitis
- acute bacterial prostatitis
-
chronic prostatitis
- chronic bacterial prostatitis
- chronic prostatitis and chronic pelvic pain syndrome (CPPS)
- asymptomatic inflammatory prostatitis
- granulomatous prostatitis
- emphysematous prostatitis
- prostatic abscess
-
prostatitis
- benign prostatic hypertrophy
- cystic lesions of the prostate
- prostatic calcification
- prostatic infarction
- testes
-
unilateral testicular lesion
- testicular torsion
- orchitis
- testicular trauma
-
germ cell tumors of the testis
- testicular seminoma
-
non seminomatous germ cell tumors
- mixed germ cell tumor
- yolk sac tumor (endodermal sinus tumor)
- embryonal cell carcinoma
- choriocarcinoma
- testicular teratoma
- testicular epidermoid (teratoma with ectodermal elements only)
- burned out testis tumor
- sex cord / stromal tumors of the testis
- testicular cyst
- testicular lymphoma
- bilateral testicular lesion
- paratesticular lesions
- epididymis
- other
- polyorchidism
- cryptorchidism
- tubular ectasia of the rete testis
- cystadenoma of the rete testis
- testicular sarcoidosis
- testicular tuberculosis
- spermatic cord
- fibrous pseudotumor of the scrotum
- scrotal leiomyosarcoma
- testicular adrenal rest tumors (TARTs)
- tunica vaginalis testis mesothelioma
- splenogonadal fusion
- testicular vasculitis
- abnormal testicular Doppler flow (differential)
-
unilateral testicular lesion
- penis
- prostate gland
- KUB
- kidneys
- normal renal anatomy
- hydronephrosis
- urolithiasis
- renal masses
- renal cystic disease
- renal infection
- vascular
- trauma
- ureter
- normal ureter anatomy
- ureteral stricture
- ureteral dilatation
- ureteral anomalies
- ureteral tumors
- ureteral trauma
- other
- bladder
- kidneys