A 24-year-old woman was admitted to our hospital for examinations of multiple nodules in bilateral lung fields. Mediastinal lymph node specimen by surgical resection revealed non-caseating epithelioid cell granuloma which was compatible with sarcoidosis. Some nodules showed cavitary formation without any treatment. Bacteriological and cytological studies yielded negative results. This is a rare case of sarcoidosis with multiple nodules showing cavitary formation.