Osseous infiltration in a patient with sarcoidosis

Abstract A man with lumbar back pain underwent magnetic resonance imaging that showed vertebral and iliac bone lesions. A vertebral biopsy was performed in order to rule out malignancy. Pathology showed non-necrotizing granulomas. The patient had been diagnosed with pulmonary sarcoidosis 20 years earlier and this time the diagnosis made was vertebral sarcoidosis. Osseous infiltration is seen in 13% of patients with sarcoidosis, most of them with long-term disease. Iliac sarcoidosis has seldom been reported, and there are no cases of both iliac and vertebral sarcoidosis in the literature.