This is a case of a 74-year-old obese male presented with moderate lower urinary tract symptoms and an elevated prostate specific antigen (PSA) of 48.21ng/ml. Multiparametric MRI of the prostate revealed a markedly enlarged prostate (225grams) with a PIRADS 5 lesion at the left posterior peripheral zone. Prostate biopsy done revealed prostate adenocarcinoma Gleason 7(3+4). Metastatic workup was negative for distant metastasis hence the patient was advised robot-assisted laparoscopic prostatectomy (RALP).Several difficulties were encountered during the surgical technique. The usual posterior approach was not feasible because incising the peritoneum over the rectovesical pouch would not be able to expose the vas deferens and seminal vesicles. An anterior approach was instead done, but this was still difficult due to the lack of space for proper exposure and movement of instruments. The posterior dissection was also challenging; three successive suspension stitches were necessary in order to expose and mobilize the lateral and posterior surface of the prostate. Urethrovesical anastomosis had to be modified by performing a modified posterior repair in order to reduce tension caused by the large gap left by the excised prostate. RALP is a safe and feasible operative technique for very large prostates as long as the difficulties are foreseen and the necessary adjustments are made.Robot-assisted laparoscopic prostatectomy (RALP) has emerged as the preferred option in the treatment of localized prostate cancer. As more cases are being performed, more surgeons are encountering challenging cases, such as those with difficult anatomy, prior abdominal surgery and prior radiation therapy. Large prostate glands increase the technical difficulty of performing robot-assisted laparoscopic prostatectomy.1 Reported is a case of RALP in a patient with prostate size >200. The difficulties and concerns in such situations are also delineated.

: Multiparametric MRI (mpMRI) of the prostate is recently becoming more and more utilized in the detection of prostate cancer. Studies have shown that a higher PIRADS score correlated to a higher chance of obtaining a clinically significant prostate cancer but few studies have correlated PIRADS score to a specific Gleason score. OBJECTIVE: This study aimed to determine the concordance of PIRADS score to the Gleason score result of MRI ultrasound fusion-guided prostate biopsy. METHODS: All patients who had at least a PIRADS 2 lesion on mpMRI and underwent MRI ultrasound fusion-guided biopsy of the prostate from August 2018 up to November 2019 at St. Luke’s Medical Center, Global City were included in the study. An ambispective collection of data was done until the ideal sample size of greater than 100 positive lesions was obtained, in order to derive concordance rate. RESULTS: One hundred and sixty-two patients were included in the study with a total of 212 lesions analyzed. Forty three percent were benign while 57% were found to be malignant. PIRADS 2 lesions had zero high grade cancers, and the percentage steadily increased with 37.8% of PIRADS lesions considered high grade. Concordance was computed to be 0.38 showing a fair, direct concordance between PIRADS and Gleason score with significant result (p<0.05). CONCLUSION A result of PIRADS 4 or 5 lesion on mpMRI will have a higher urgency of doing a prostate biopsy and subsequent management to prevent unfavorable outcomes as opposed to PIRADS 3 lesions.