CASE 10136 Published on 28.05.2012

Cystic dysplasia of the seminal vesicles

Section

Uroradiology & genital male imaging

Case Type

Clinical Cases

Authors

Mayoral Campos V, Bonnet Carrón C, Carro Alonso B, Sancho Lozano L

Hospital Clínico Universitario Lozano Blesa.
Avda/ San Juan Bosco, 15.
Zaragoza. Spain.
Email:vickymayoral@gmail.com
Patient

39 years, male

Categories
Area of Interest Urinary Tract / Bladder ; Imaging Technique CT, Ultrasound
Clinical History
We present the case of a 39-year-old man affected with several weeks of occasional
hematospermia. Such episodes were not related to any specific cause; the patient
referred a history of recurrent urinary tract infections. Morphological, biochemical and
hormonal blood parameters did not show any significant abnormality. Semen analysis
showed oligozoospermia.
Imaging Findings
Abdominal ultrasound study showed a cystic multi-lobed mass of 86 x 55 x 55 mm,
localised in low pelvis, posterior to the normal bladder. The right kidney was not
visualised, and the left kidney was of regular size and structure.

Axial contrast enhanced CT examination showed a right renal hypoplasia with pyelo-
ureteral dilatation. The right ureter opened up distally into the multi-lobed mass
localised in pelvis that corresponded to a seminal vesicle cyst. The left pyelo-ureteral
system had no abnormalities.
Discussion
Seminal vesicles cysts are a rare condition, which may be congenital or acquired. [1, 2]
It is caused by an abnormality in the development of the Mesonephric or Wolffian duct.
[1-6] Frequently, these malformations are associated with several abnormalities such as
ectopic ureter, renal aplasia or dysplasia, or cysts of the seminal vesicles. The intimate
embryological relationship between genital and urinary tract explains the high incidence
of associated malformations.

80% of patients with seminal vesicle cysts have ipsilateral renal dysgenesia, 8% have
duplication of the collecting system and ectopic implantation of the ureter to the seminal
vesicle may also appear. [1, 2]

The clinical presentation is diverse, with asymptomatic patients in most cases. It can be
an incidental finding within the study of male infertility. [3] If there are any symptoms,
they usually start between 21-41 years of age, when the sexual maturation of men
is finished. [2] Other common clinical presentations include recurrent urinary tract
infection, hemospermia, ejaculatory pain or perineal discomfort. [4]

The diagnosis of this malformation is made either through clinical symptoms or through digital rectal examination. Imaging tests are essential for the diagnosis confirmation. Abdominal or trans-rectal ultrasound is performed for the initial evaluation of the majority of the cases, either after clinical suspicion or as an incidental finding. [5] CT examination or MRI are the gold standard tests for the final confirmation of this malformation. [6]

The treatment of these urological malformations should be restricted to symptomatic cases. Patients who remain asymptomatic (without pain or functional deformity) do not usually need treatment and observation is adequate. In patients with symptoms, ultrasound guided cyst aspiration or surgery, especially vesiculectomy with or without removal of the hypoplastic kidney [4], are the techniques chosen for the treatment of this condition.

Take Home Message:
Seminal vesicles cysts are a rare condition associated with an abnormal development
of the ipsilateral upper urinary tract. The treatment should be decided according to the
symptoms.
Differential Diagnosis List
Seminal vesicle cyst with renal hypoplasia and ectopic ureter.
Cyst of the seminal vesicles
Cyst of the Muller duct
Cyst of the urogenital sinus
Prostatic cyst
Final Diagnosis
Seminal vesicle cyst with renal hypoplasia and ectopic ureter.
Case information
URL: https://www.eurorad.org/case/10136
DOI: 10.1594/EURORAD/CASE.10136
ISSN: 1563-4086