During a recent 10-year period, scirrhous tumors of the stomach were diagnosed at upper gastrointestinal examinations in 27 patients in whom pathologic correlation was available. Nineteen patients underwent double-contrast studies, and eight underwent single-contrast studies. Twenty-two of the 27 patients had primary gastric carcinoma, four had gastric involvement by metastatic breast cancer, and one had antral gastritis and scarring without evidence of malignancy. Although the involved gastric segment often demonstrated only mild loss of distensibility, the presence of a scirrhous tumor was suggested radiographically by distortion of the normal surface pattern of the stomach with mucosal nodularity, spiculation, ulceration, and/or thickened, irregular folds. Ten patients had localized lesions involving the gastric fundus and/or body rather than the classic form of linitis plastica involving the distal stomach. Furthermore, endoscopy had significant limitations in confirming this diagnosis, as findings from brushings or biopsies were positive for malignancy in only 14 of 20 patients (70%). Radiologists should be aware of the frequent proximal location of these scirrhous tumors and of the problems of endoscopic diagnosis.