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K-ras Gene Status and Microsatellite Instability of Medullary and Nonmedullary Adenocarcinomas of the Pancreas
| No. with wild-type K-ras gene/no. studied | No. with MSI/no. studied | |
|---|---|---|
| Microdissected medullary carcinomas | 9/13 (69%) | 1/13 (7.7%) |
| Xenografted medullary carcinomas | 3/5 (60%) | 3/5 (60%) |
| Microdissected nonmedullary carcinomas | 0/5 (0%) | 0/5 (0%) |
| Xenografted nonmedullary carcinomas | 4/72 (5.6%) | 0/72 (0%) |
| Total | 16/95 (17%) | 4/95 (4.2%) |
