Ollier disease (Spranger type I) is a rare bone disease that is characterized by multiple enchondromatosis with a typical asymmetrical distribution and confined to the Ollier disease (Spranger type I) is a rare bone disease that is characterized by multiple enchondromatosis with a typical asymmetrical distribution and confined to the appendicular skeleton. Abstract. Metrics. Constant monitoring of patients is important due to the high risk of malignancy PDF. More. Abstract. The Ollier disease. E