Korean J Urol.  2012 Mar;53(3):209-213.

Giant Multilocular Cystadenoma of the Prostate: A Rare Cause of Huge Cystic Pelvic Mass

• Olgun DC
• Onal B
• Mihmanli I
• Kantarci F
• Durak H
• Demir H
• Cetinel B

Abstract

Giant multilocular prostatic cystadenoma is a rare benign tumor that evolves from the prostate gland. Obstructive voiding symptoms occur in all reported cases. These lesions do not invade adjacent structures. Preoperative radiologic evaluation can define the benign nature of the lesion. Here we report a case of large cystic lesions identified by magnetic resonance imaging and sonographic findings that caused an extensive mass effect in the pelvis. When retrovesical, huge cystic lesions fill the pelvis completely in young men, with high levels of serum prostate-specific antigen, giant multilocular prostatic cystadenoma should be considered as a differential diagnosis. To our knowledge, this is the youngest case of prostatic cystadenoma reported in the literature.

Keyword

Cystadenoma; Prostate; Prostatic neoplasms

MeSH Terms

Cystadenoma
Diagnosis, Differential
Humans
Magnetic Resonance Imaging
Male
Pelvis
Prostate
Prostate-Specific Antigen
Prostatic Neoplasms
Prostate-Specific Antigen

Figure

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  FIG. 1 Transabdominal sonography images in sagittal (A) and transverse (B) planes showing a well-defined, encapsulated, anechoic huge cystic mass with multiple thin, echogenic internal septations presenting in a cyst appearance.

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  FIG. 2 Preoperative magnetic resonance imaging (MRI) images: (A) axial T2-weighted image showing a multiloculated cystic mass displacing the bladder catheter balloon (b) within the bladder lumen in a left anterior position, (B) the same section in an axial T1-weighted image displaying a different intensity in the multiloculated cystic mass, and (C) the sagittal fat sat T1-weighted image showing an apparent mucinous component of the lesion (m).

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  FIG. 3 Histopathological findings: (A) Macroscopic aspect of the giant multilocular cystadenoma of the prostate. (B) The lesion shows well-developed, dilated prostate glands (H&E, ×40). (C) The dilated cysts are lined by cuboidal to low-columnar epithelial cells with basally located nuclei (H&E, ×40). (D) Immunoperoxidase staining with the prostate-specific antigen stain (×400).

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