Lymphatic Invasion and Micrometastasis in Gastric Cancer
Author Information
Author(s): Arigami T, Natsugoe S, Uenosono Y, Arima H, Mataki Y, Ehi K, Yanagida S, Ishigami S, Hokita S, Aikou T
Primary Institution: Kagoshima University Graduate School of Medical and Dental Sciences
Hypothesis
Does lymphatic invasion correlate with lymph node micrometastasis in pN0 gastric cancer?
Conclusion
The study found a high incidence of lymph node micrometastasis in gastric cancer patients, particularly those with lymphatic invasion.
Supporting Evidence
- Micrometastasis was found in 11.3% of patients by IHC and 31.3% by RT-PCR.
- D2-40 staining revealed lymphatic invasion in 23.8% of patients, compared to 11.3% by HE staining.
- Patients with lymphatic invasion had a significantly higher incidence of micrometastasis.
Takeaway
Doctors found tiny cancer cells in the lymph nodes of some stomach cancer patients, even when tests said they were cancer-free. This means they need to check more carefully.
Methodology
The study used immunohistochemistry and reverse transcription–polymerase chain reaction to analyze lymph nodes from patients with node-negative gastric cancer.
Limitations
The follow-up period was short, limiting the ability to assess long-term outcomes.
Participant Demographics
57 male and 23 female patients, aged 41-84 years, average age 65.
Statistical Information
P-Value
P<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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