Giant multilocular prostatic cystadenoma, a diagnosis to consider in large pelvic male masses

A rare case of ductal variant multilocular prostatic cystadenocarcinoma invading the rectum

Prostate papillary and cribriform ductal prostatic adenocarcinoma is a rare malignancy infrequently reported in the literature. We describe a case of rectally invasive prostate cystic adenocarcinoma and surgical extirpative management not requiring fecal or urinary diversion.

Robot-Assisted Extraperitoneal Radical Prostatectomy for Giant Multilocular Prostatic Cystadenoma: A Case Report and Literature Review

A 48-year-old man with a medical history of hypertension and no family history of prostate cancer presented with abdominal distension, lower abdominal pain, and lower urinary symptoms. Physical examination revealed a palpable mass in the lower abdomen, and a digital rectal examination detected a firm mass on the anterior side of the rectum. Laboratory tests showed an elevated PSA level (7.9 ng/mL). Imaging studies indicated a solid mass connected to the prostate's posterior and rectum's anterior walls, along with bladder compression. Transperitoneal biopsy and histological analysis led to a diagnosis of a stromal tumor with uncertain potential malignancy. Considering the absence of apparent malignancy signs and the smooth outer wall of the tumor, the patient underwent, for the first time in the literature, a robot-assisted radical extraperitoneal prostatectomy for complete macroscopic resection. The surgery involved excision of the bulky pelvic mass, preservation of the urethra, and anatomical reconstruction. The postoperative course was uneventful, and we discharged the patient with no complications. The pathological examination documented the diagnosis of multilocular prostatic cystadenoma. Post-surgery follow-up examinations, including PSA levels and imaging scans, showed no signs of tumor recurrence. At the 3-, 6-, and 9-month follow-ups, the patient was asymptomatic and had fully recovered, with no urinary or sexual dysfunction reported.

Case report: Giant unilocular prostate cystadenoma: A rarer condition with a single cystic mass

Prostate cystadenoma is a rare benign prostatic neoplasm, which grows outside prostate and locates midline between the urinary bladder and rectum. It usually presents as multilocular cysts, thus, named giant multilocular prostate cystadenoma. The definite diagnosis is difficult to be made before surgery, and it depends on histopathology. Here, we report a rarer condition of prostate cystadenoma, which manifests as a giant unilocular cyst with a solid nodule inside. The 55-year-old Chinese male patient presented with dysuria and constipation. MRI revealed a 10.5 × 8.2 cm mono-cystic lesion displacing the rectum to the posterior, prostate, and bladder to the anterior, with a 2.8 × 2.1 cm solid nodule at the anterior wall. ¹⁸F-FDG PET/CT demonstrated an elevated SUV_max (3.5) of the solid nodule. Laparoscopic pelvic mass resection was performed and prostate cystadenoma was diagnosed. In conclusion, when a mass of single locular cyst sits in the male pelvis, the diagnosis of prostate cystadenoma could not be excluded.

Giant multilocular prostatic cystadenoma in a young man: A case report from Jordan

Giant Multilocular Prostatic Cystadenoma (GMPC) is one of the rare benign tumors of the prostate. This report presents a case of a young man who has been recently diagnosed with GMPC. Our report highlights the importance of timely diagnosis and treatment, considering the overlapping symptoms with other common urinary conditions.

Despite its rarity, GMPC is a benign tumor of the prostate gland that should be taken into consideration as one of the differential diagnoses for large pelvic /retroperitoneal cystic lesions. Complete surgical excision is the treatment of choice.

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.

Prostatic cystadenoma presenting as a large multilocular pelvic male mass

Multilocular cystadenoma are benign lesions located most commonly between the rectum and the bladder. Their presence manifests as obstructive or/and irritative lower urinary tract symptoms or transit disorders. Computed tomography scan and magnetic resonance imaging may help to establish the diagnosis. Surgery is the established treatment standard, with a high risk of recurrence in case of incomplete excision of the lesions. Here we report a case of 59-year-old man presenting with an acute urinary retention due to a giant multilocular prostatic cystadenoma treated by complete excision. The diagnosis has never been suspected before surgery and has been confirmed histologically after complete excision.

Giant multilocular prostatic cystadenoma in a 16-year-old male with difficulty in defecation: case report and literature review

Giant multilocular prostatic cystadenoma is a rare benign tumor that originates from the prostate gland. It usually is between the rectum and the bladder, and is composed of predominantly cystic enlarged prostatic glands in a fibrous stroma and spreads extensively in the pelvis. The mass usually causes a series of obstructive symptoms by compressing adjacent organs. Here we report a case of a giant multilocular prostatic cystadenoma in a 16-year-old patient, who is the youngest case reported up to now, complaining of difficulty in defecation.

CT and MRI findings of a stromal tumour of uncertain malignant potential of the prostate

Cystic neoplasms arising from the prostate are rare, and stromal tumours of uncertain malignant potential and the spectrum of cystic epithelial tumours of the prostate are the major differential diagnoses of a cystic prostatic neoplasm. We report a case of a stromal tumour of uncertain malignant potential, which showed a multilocular cystic mass with some solid components. The solid component of the tumour did not show substantial diffusion restriction and uptake of ¹⁸F-FDG-PET, and this could be the critical finding suggesting a stromal tumour of uncertain malignant potential rather than a malignant cystic epithelial tumour.