Predicting lateral pelvic lymph node metastasis based on magnetic resonance imaging before and after neoadjuvant chemotherapy for patients with locally advanced lower rectal cancer

Surgery Today ◽  
2019 ◽  
Vol 50 (3) ◽  
pp. 292-297 ◽  
Author(s):  
Yuki Sekido ◽  
Junichi Nishimura ◽  
Shiki Fujino ◽  
Takayuki Ogino ◽  
Norikatsu Miyoshi ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Rectal Cancer ◽  
Lymph Node ◽  
Locally Advanced ◽  
Lower Rectal Cancer ◽  
Resonance Imaging ◽  
Lateral Pelvic Lymph Node ◽  
Node Metastasis ◽  
Pelvic Lymph Node Metastasis ◽  
Before And After

The Therapeutical Importance of Endoscopic Pathology versus Magnetic Resonance Imaging findings for T1 Rectal Cancer: A Case Report

2016 ◽  
Author(s):  
Eiji Hidaka ◽  
Chiyo Maeda ◽  
Kenta Nakahara ◽  
Shoji Shimada ◽  
Fumio Ishida ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Rectal Cancer ◽  
Lymph Node ◽  
Magnetic Resonance ◽  
Lymph Nodes ◽  
Cancer Cells ◽  
Pelvic Lymph Node ◽  
Lower Rectal Cancer ◽  
Resonance Imaging ◽  
Lateral Pelvic Lymph Node

Abstract Introduction: Preoperative image-based diagnosis is important for the treatment of rare cases of T1 lower rectal cancers with lateral pelvic lymph node (LLN) metastasis. We report a case of LLN metastasis in T1 lower rectal cancer diagnosed preoperatively via magnetic resonance imaging (MRI). Case presentation: A 65-year-old woman was admitted to our hospital because of abdominal pain. An endoscopic examination revealed a large laterally spreading tumor in the lower rectum, which was en bloc resected using endoscopic submucosal dissection. Pathological examination of the resected specimen showed deep invasion of the cancer cells into the submucosal layer and lymphovascular invasion. MRI revealed swollen perirectal lymph nodes (≥5 mm) and a left LLN approximately 8 mm long. Laparoscopic abdominoperineal resection (Lap-APR) with left lateral pelvic lymph node dissection (LLND) was performed. Cancer cells were not seen in the resected material; however, 7 perirectal lymph nodes and 1 LLN of 47 lymph nodes contained metastatic cancer cells. Conclusion: We show that LLN metastasis in T1 lower rectal cancer can be preoperatively detected via MRI and successfully and safely treated via Lap-APR with left LLND.

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