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Updated: Oct 16, 2025

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Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer
Published on: February 12, 2022
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Advanced synchronous rectal and prostate cancers diagnosed by lateral lymph node dissection: A case report
Mizunori Yaegashi1, Koki Otsuka2, Yuya Nakamura3
1Department of Surgery, Iwate Medical University School of Medicine, Shiwa, Japan; Department of Surgery, Iwate Prefectural Kuji Hospital, Kuji, Japan.
International Journal of Surgery Case Reports
|October 15, 2021
Summary
Synchronous rectal and prostate cancers can metastasize to pelvic lymph nodes. Lymph node dissection aids in staging and treatment planning for these rare, concurrent diagnoses.
Area of Science:
- Oncology
- Surgical Pathology
Background:
- Rectal and prostate cancers are prevalent globally.
- Both malignancies share a propensity to metastasize to pelvic lateral lymph nodes (LLNs).
Purpose of the Study:
- To report a rare case of synchronous rectal and prostate cancers.
- To highlight the diagnostic challenges and management strategies for concurrent LLN metastasis.
Main Methods:
- A patient with rectal cancer and suspected LLN metastasis underwent laparoscopic surgery.
- Histopathology and immunohistochemistry (PSA, AMACR) were crucial for diagnosis.
- Hormonal therapy was administered for stage IV prostate cancer.
Main Results:
- Synchronous rectal and prostate cancers with LLN metastasis were diagnosed.
- Post-treatment, the patient showed a significant reduction in prostate-specific antigen (PSA) levels.
- The patient remained disease-free for approximately four years.
Conclusions:
- Preoperative diagnosis of LLN metastasis from synchronous rectal and prostate cancers is challenging.
- Lymph node dissection is valuable for staging and guiding treatment.
- A strategic approach is necessary to manage concurrent staging and progression.

