Clinicopathological features of syphilitic gastritis in Korean patients.

Syphilitic gastritis is difficult to diagnose without a history of syphilis, because endoscopic and microscopic findings can simulate gastric cancer or lymphoma. Herein are reported two cases of syphilitic gastritis and analysis of the clinicopathological characteristics of 11 cases in Korean subjects, including nine previously reported ones. The two present patients were 25- and 32-year-old men with epigastric pain. The gastroduodenoscopy features were similar: multiple erosive or ulcerative lesions in whole gastric mucosa. Microscopically, gastric mucosa contained severe chronic active gastritis involving submucosa with crypt abscesses, venulitis and granulomas, suggesting unusual infectious gastritis. Numerous spirochetes were identified on silver staining, and serological tests for syphilis were reactive in both patients. They were treated with benzathin penicillin, and follow-up gastric biopsy specimens indicated non-specific chronic gastritis without evidence of syphilis. Of the 11 Korean patients with syphilitic gastritis, six were female and five were male (mean age, 31.7 years). The most common symptom was epigastric pain and all patients had diffuse erosive, ulcerative or infiltrative lesions on gastroduodenoscopy. Syphilitic gastritis should be considered in young patients with epigastric pain who have diffuse gastric involvement such as erosion or shallow ulcer on endoscopy and unusually extensive chronic active gastritis on microscopy, even if the history of syphilis is not clear.