AIM: This study has aimed to evaluate the added value of SPECT-CT scan in the preoperative assessment of sentinel nodes of the presacral and pararectal regions localized outside the standard area of extended pelvic lymphadenectomy for the staging of the pelvis in @entity263 . SPECT-CT scan can serve as a guide for the excision of these nodes by lymphadenectomy by open surgery or laparoscopy. MATERIAL AND METHODS: We evaluated 4 @entity1 with @entity263 presenting sentinel nodes in the pararectal and presacral regions on SPECT-CT scan performed in addition to lymphoscintigraphy. These @entity1 underwent lymphadenectomy with robot-assisted laparoscopy together with prostatectomy. All of the excised lymph nodes were sent for histopathology study. RESULTS: An average of 6 sentinel nodes per @entity1 were found on SPECT-CT scan with a mean of 2 sentinel nodes in presacral/pararectal regi  n. Lymphadenectomy including these areas was performed. Pararectal/presacral sentinel nodes of all @entity1 depicted by SPECT-CT scan were @entity5 free on histopathology study. Sentinel nodes (no pararectal/presacral) were positive for @entity5 in only one @entity1 . CONCLUSION: Preoperative SPECT-CT scan is a useful tool to localize the sentinel nodes in pararectal/presacral regions. It can be an anatomic guide for new modalities of laparoscopic surgery such as robot-assisted procedures that can access the pelvic areas visualized with SPECT-CT scan, making excision of these nodes possible.

[Utility of SPECT/CT scan for anatomical localization of pararectal and presacral sentinel nodes in XXXX .]

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity263 :: ('MESH:D011471', 'Disease') :: ['prostate cancer'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'malignancy']
@entity263 :: (MESH:D011471,Disease) :: ['prostate cancer']
