Metastatic Lymph Node Distribution in the Ileum Mesentery of Cecal and Proximal Ascending Colon Cancer

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

406 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-09-01

Study Completion Date

2030-09-01

Brief Summary

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Based on the above considerations, our team maintains that it is currently imperative to conduct a prospective multicenter registry study. This study would involve sectioning and submitting fresh surgical specimens from the ileum mesentery of patients undergoing radical resection for cecal cancer and proximal ascending colon cancer (right-sided colon cancer). The objectives are to: Clarify the distribution range of metastatic lymph nodes within the ileum mesentery; Conduct survival follow-up on enrolled patients; Provide reliable evidence-based medical evidence for the individualized determination of ileal resection margins.

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Detailed Description

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Conditions

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Colon Cancer

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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experimental group

Experimental

Intervention Type PROCEDURE

sectioning and submitting fresh surgical specimens from the ileum mesentery

Interventions

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Experimental

sectioning and submitting fresh surgical specimens from the ileum mesentery

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

Age 18-80 years; ECOG performance status 0-2; Histologically confirmed colon adenocarcinoma; Surgical specimen confirming tumor location at: ileocecal valve orifice (cecal cancer), OR proximal ascending colon cancer with tumor ≤5 cm from ileocecal valve; Clinical stage: cT2-4aN0M0, OR cTanyN+M0; Patient and family members fully understand the study and voluntarily participate by signing informed consent

Exclusion Criteria

Synchronous or metachronous multiple primary colon cancers (Note: Synchronous: diagnosed within 6 months; Metachronous: diagnosed \>6 months apart); Preoperative neoadjuvant therapy (chemotherapy, immunotherapy, or radiotherapy) that may cause tumor regression or downstaging; Patients undergoing salvage radical surgery after endoscopic resection.

Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No