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Risk Factor Analysis of Lymph Node Metastasis for Rectal Neuroendocrine Tumors: Who Needs a Radical Resection in Rectal Neuroendocrine Tumors Sized 1–2 cm?
BackgroundRectal neuroendocrine tumors (NETs) have malignant potential, and lymph node (LN) or distant metastases can occur; however, treatment of...
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Imaging segmentation mechanism for rectal tumors using improved U-Net
ObjectiveIn radiation therapy, cancerous region segmentation in magnetic resonance images (MRI) is a critical step. For rectal cancer, the automatic...
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Efficacy of Endoscopic Resection for Rectal Neuroendocrine Tumors Smaller than 15 mm
BackgroundLocal resection, including endoscopic resection, is recommended for rectal neuroendocrine tumors (NETs) < 15 mm in patients without risk...
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Incidence of low anterior resection syndrome and its association with the quality of life in patients with lower rectal tumors
PurposeLow anterior resection syndrome (LARS) causes devastating symptoms and impairs the quality of life (QOL). This study investigated the...
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Immunoreactivity of HOXB13 in Neuroendocrine Neoplasms Is a Sensitive and Specific Marker of Rectal Well-Differentiated Neuroendocrine Tumors
HoxB13 is a transcription factor involved in defining of posterior endodermal derivatives, including prostate and rectum. While it is used as a...
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When is neoadjuvant chemotherapy indicated in rectal neuroendocrine tumors? An analysis of the National Cancer Database
BackgroundRectal neuroendocrine tumors (rNET) are rare and challenging to manage. While most patients with small rNET can be definitively treated...
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Technical outcomes of robotic-assisted surgery versus laparoscopic surgery for rectal tumors: a single-center safety and feasibility study
PurposeRobot-assisted surgery has a multi-joint function, which improves manipulation of the deep pelvic region and contributes significantly to...
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Modified pull-through coloanal anastomosis to avoid permanent stomas and reduce postoperative complications for lower rectal tumors
BackgroundWe performed pull-through hand-sewn coloanal anastomosis immediately after sphincter-preserving ultralow anterior resection (ULAR)...
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Do treated rectal tumors appear differently on MRI after chemotherapy versus chemoradiotherapy?
PurposeIncreasing studies have focused on neoadjuvant chemotherapy (NCT) in rectal cancer. However, few studies explored the differences in...
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Long-term results of minimally invasive transanal surgery for rectal tumors in 249 consecutive patients
PurposeTo delineate the long-term results of minimally invasive transanal surgery (MITAS) for selected rectal tumors.
MethodsWe analyzed data,...
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Impact of grade on workup of rectal neuroendocrine tumors: a retrospective cohort study
BackgroundRectal neuroendocrine tumors (RNETs) are often discovered on screening colonoscopy. Indications for staging and definitive resection are...
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Trans-anal surgery with the taTME technique for rectal gastrointestinal stromal tumors: a retrospective study
PurposeRectal gastrointestinal stromal tumors (GISTs) surgery is often challenging owing to the anatomical constraints of the narrow pelvis and tumor...
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Evaluation of treatment response by multiparametric MR imaging in locally advanced rectal tumors following neoadjuvant chemotherapy
PurposeTo investigate the effectiveness of multiparametric MRI examination in determining tumor response after neoadjuvant chemoradiotherapy (CRT) in...
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Long-term clinical outcomes of endoscopic submucosal dissection in rectal neuroendocrine tumors based on resection margin status: a real-world study
BackgroundEndoscopic submucosal dissection (ESD) has been widely adopted in treating rectal neuroendocrine tumors (NETs). However, clinical outcomes...
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Pattern of care for re-irradiation in locally recurrent rectal cancer: a national survey on behalf of the AIRO gastrointestinal tumors study group
PurposeRadical resection (R0) represents the best curative treatment for local recurrence (LR) rectal cancer. Re-irradiation (re-RT) can increase the...
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Underwater endoscopic mucosal resection for rectal neuroendocrine tumors (with videos): a single center retrospective study
BackgroundUnderwater endoscopic mucosal resection (UMER) is a new method of endoscopic resection to completely remove the lesion without submucosal...
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Modified neoadjuvant rectal score as a novel prognostic model for rectal cancer patients who underwent chemoradiotherapy
BackgroundThe neoadjuvant rectal score (NAR score) has recently been proposed as a better prognostic model than the conventional TNM classification...
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Outcomes of Local Excision Compared to Radical Excision of Rectal Gastrointestinal Stromal Tumors: A Propensity-Score Matched Analysis of the NCDB
BackgroundGastrointestinal stromal tumors (GISTs) account for <1% of gastrointestinal cancers. The present study aimed to assess the outcomes of...
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Primary adenocarcinoma arising from rectal implantation cyst after low anterior resection for rectal cancer 31 years previously
Rectal implantation cysts can occur at anastomotic sites after low anterior resection (LAR) for rectal cancer. Herein, we report a case of primary...
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Endoscopic intermuscular dissection (EID) for removing early rectal cancers and benign fibrotic rectal lesions
In the current era of screening colonoscopy and increasing incidence of early rectal cancer, interventional endoscopy moves toward resections in...
