Prognostic Significance and Clinicopathological Features of Synchronous Colorectal Cancer

Area of Science:

• Oncology
• Gastroenterology
• Cancer Research

Background:

• Colorectal cancer (CRC) can present as a single tumor (solitary) or multiple tumors detected simultaneously (synchronous).
• Understanding differences in clinicopathological and prognostic features is crucial for effective patient management.

Purpose of the Study:

• To compare the clinicopathological and prognostic characteristics of synchronous CRC versus solitary CRC.
• To identify potential differences in survival outcomes between these two forms of colorectal cancer.

Main Methods:

• Retrospective analysis of 1,295 consecutive patients diagnosed with colorectal cancer.
• Comparison of patient cohorts with synchronous CRC (n=92) and solitary CRC.
• Statistical analysis to determine differences in tumor characteristics and survival rates.

Main Results:

• Synchronous CRC was diagnosed in 7.1% of the study population.
• Mucinous adenocarcinoma was significantly more prevalent in synchronous CRC cases (13.0%) compared to solitary CRC (3.7%).
• The 5-year relapse-free survival (RFS) rate was significantly lower for synchronous CRC (65.3%) than for solitary CRC (75.1%), with a hazard ratio of 1.52.

Conclusions:

• Patients with synchronous colorectal cancer exhibit a poorer relapse-free survival compared to those with solitary CRC.
• Synchronous CRC cases may necessitate more intensive follow-up strategies due to their worse prognostic indicators.
• Further research into the specific management and treatment of synchronous CRC is warranted.