Gastric sarcoidosis--a single polypoid appearance in the involvement.

We describe a case of gastric sarcoidosis which developed during a 10-year period of observation of generalized sarcoidosis. The patient was asymptomatic, but gastroduodenoscopy revealed a polypoid lesion in the antral region. The specimen obtained by polypectomy showed noncaseating granuloma, suggesting sarcoidosis. Chest radiograph and computed tomographic examination revealed no involvement of the lung or mediastinal lymph nodes, although these findings were present at the initial diagnosis. The present case indicates that gastric involvement should be considered in patients with sarcoidosis, even when no hilar lymphadenopathy is present. Furthermore, the macroscopic appearance of a single polyp in gastric sarcoidosis is extremely rare in gastric sarcoidosis in the literature.