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Positive lateral lymph node turned negative after neoadjuvant therapy-surgery or observation?
Tech Coloproctol
January 2025
Department of Surgery, Amsterdam UMC Location Vrije Universiteit, Amsterdam, The Netherlands.
Since the adoption of neoadjuvant chemoradiation and total mesorectal excision as the standard in rectal cancer care, there has been marked improvement in the local recurrence rates. In this context, restaging magnetic resonance imaging (MRI) plays a key role in the assessment of tumor response, occasionally enabling organ-sparing approaches. However, the role of restaging MRI in evaluating lateral lymph nodes remains limited.
View Article and Find Full Text PDFMargin matters: analyzing the impact of circumferential margin involvement on survival and recurrence after incomplete total mesorectal excision for rectal cancer.
Tech Coloproctol
January 2025
Department of Colorectal Surgery, Digestive Disease Institute, Cleveland Clinic, Cleveland, OH, USA.
Background: Incomplete mesorectal excision during rectal cancer surgery often leads to positive circumferential margins, with uncertain prognostic impacts. This study examines whether negative margins can mitigate the poorer prognosis typically associated with incomplete total mesorectal excision (TME) in rectal cancer surgery, thus potentially challenging the prevailing emphasis on complete mesorectal excision.
Patients And Methods: A retrospective analysis was conducted on patients who underwent proctectomy for rectal adenocarcinoma with incomplete TME at a single center from 2010 to 2022.
Simultaneous integrated boost intensity-modulated radiation therapy targeting clinically involved extramesorectal lymph nodes in locally advanced rectal cancer: A retrospective study.
Colorectal Dis
January 2025
Department of Radiation Oncology, Tata Memorial Centre, Mumbai, India.
Aim: Consensus is lacking regarding the management of extramesorectal lymph nodes (EMLN) in rectal cancer. Using simultaneous integrated boost intensity-modulated radiation therapy (SIB-IMRT), we targeted involved EMLN and reserved lateral pelvic lymph nodal dissection (LPLND) for nonresponders. The primary aim of this work was to determine the proportion of patients who avoided LPLND and to establish the pathological EMLN positivity rate.
View Article and Find Full Text PDFInterobserver and sequence variability in the delineation of pelvic organs at risk on magnetic resonance images.
Radiol Oncol
January 2025
1State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province, China.
Background: This study evaluates the contouring variability among observers using MR images reconstructed by different sequences and quantifies the differences of automatic segmentation models for different sequences.
Patients And Methods: Eighty-three patients with pelvic tumors underwent T1-weighted image (T1WI), contrast enhanced Dixon T1-weighted (T1dixonc), and T2-weighted image (T2WI) MR imaging on a simulator. Two observers performed manual delineation of the bladder, anal canal, rectum, and femoral heads on all images.
Hemorrhoidal disease: what role can rectal artery embolization play?
Front Surg
January 2025
Interventional Radiology Section, Department of Medical Imaging, University Hospital Timone, APHM, Marseille, France.
Introduction: Hemorrhoidal artery embolization, also known as Emborrhoid, has emerged in recent years as a minimally invasive treatment option for patients with recurrent and unresponsive to medical therapies hemorrhoidal bleeding symptoms. We present here an overview of the profile of rectal artery embolization based on the most relevant and recent literature.
Methods: A comprehensive review of literature on Hemorrhoidal artery embolization, was conducted on PubMed-Medline.
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