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양미연 ( Mi Yean Yang ),유양선 ( Yang Seon Ryu ),고희자 ( Hee Ja Ko ),박세경 ( Se Kyng Park ),박종숙 ( Jong Sook Park ),박춘식 ( Chun Sik Park ),박재성 ( Jae Sung Park ),백상현 ( Sang Hyen Bak ),고은석 ( Eun Suk Ko ),박정미 ( Jeon 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.69 No.1
Sarcoidosis is a multi-systemic granulomatous disorder of unknown etiology. The characteristic pathological finding is the presence of non-caseating granulomas. The lungs are primarily affected, however other organs may be involved causing various symptoms and ambiguous laboratory findings can be present. There are a few reported cases of sarcoidosis with elevated tumor markers. We describe a 68-year-old woman presenting with sarcoidosis showing elevated serum carcinoembryonic antigen (CEA). The possibility of cancer arising from serum CEA such as gastrointestinal cancer, breast cancer and lung cancer was excluded. A transbronchial lung biopsy demonstrated a non-caseating granuloma without necrosis. As a result prescribed 30 mg prednisolone daily to the patient and serum CEA was decreased after 1 month of treatment. We report a case of pulmonary sarcoidosis with elevated serum CEA.