[3 T MRI of the prostate in patients with symptomatic prostatic utricle cyst]

Imaging and clinical features of giant multilocular prostatic cystadenoma: A case report

RATIONALE

Giant multilocular prostatic cystadenoma (GMPC) is a rare type of prostatic epithelial neoplasm. Thus, the imaging features of this condition are not well known. We report the imaging and clinical manifestations of a case of GMPC.

PATIENT CONCERNS

The case reported here relates to a 71-year-old man who complained of urination frequency and excessive urination at night. He underwent computed tomography (CT) and magnetic resonance imaging (MRI) examination before surgery, both tests revealed a mass body in the prostate.

DIAGNOSIS

Ultrasound-guided fine needle aspiration was performed and a diagnosis of GMPC was made by histological examination.

INTERVENTIONS

The patient received radical pelvic tumor resection successfully.

OUTCOMES

Two months after surgery, the follow-up CT and magnetic MRI re-examination found no signs of recurrence.

LESSONS

GMPC is a rare prostatic neoplasm with atypical clinical symptoms. MRI provides valuable information about GMPC. In case of a giant multilocular prostatic mass with well-defined boundary and abundant vascularity, benign feature on diffusion-weighted imaging, GMPC should be considered.

[3-Tesla MRI of rare large cystic prostate carcinoma]

Magnetic resonance imaging of rare cystic prostate cancers using multiparametric MRI (mp-MRI, 3 Tesla) shows, especially in solid tumor masses, the criteria of ESUR-MR classification with a PI-RADS >3 ("probably malignant"). In association with additional morphological evidence of intracystic hemorrhage and evidence of villous tumor nodules and irregular septa on the cyst wall, further malignancy criteria are met. MRI complementary to TRUS may be useful for targeted biopsy in solid tumor areas.