Related Experiment Videos
Multiple early gastric carcinomas. Clinicopathologic features and histogenesis
Cancer
|November 15, 1996
Summary
Multiple early gastric carcinomas are associated with numerous epithelial dysplastic lesions, suggesting their role in the development of differentiated multiple gastric carcinomas. Early detection of accessory lesions is crucial for improved patient outcomes.
Area of Science:
- Gastroenterology
- Oncology
- Pathology
Background:
- Multiple early gastric carcinomas occur in 5-15% of patients.
- Understanding the clinicopathologic features and histogenesis of multiple early gastric carcinomas is essential.
Purpose of the Study:
- To clarify the clinicopathologic features of multiple early gastric carcinomas.
- To investigate the histogenesis of multiple early gastric carcinomas.
Main Methods:
- Analysis of 724 patients with early gastric carcinoma, including 65 with multiple lesions.
- Histogenesis investigation using serial sections and immunohistochemical staining (p53) in 33 patients with multiple early gastric carcinomas (MEGC) and 33 with solitary early gastric carcinoma (SEGC).
Main Results:
- The depressed and flat types were common macroscopic findings, often diagnosed postoperatively.
- Patients with differentiated MEGC showed significantly more epithelial dysplastic lesions compared to other groups.
- Severe epithelial dysplasia and p53 protein expression increased with lesion severity.
Conclusions:
- Preoperative detection of small depressed and flat accessory lesions in multiple gastric carcinomas is recommended.
- Epithelial dysplastic lesions are likely significant in the histogenesis of differentiated multiple gastric carcinomas.