Abnormal bone growth such as shortening or thickening and deformity may be observed in patients of Ollier disease. These bone lesions are visible at birth using radiography but are usually not screened or examined for until clinical manifestations present during early childhood. However, some patients may exhibit no signs of any symptoms. One study found thirteen to be the mean age of diagnosis in patients with Ollier disease. In a roentgenogram, there would normally be the presence of several homogeneous lesions of an oval or elongated shape with bone edges that are slightly thickened. With age, these lesions may calcify and appear as diffusely minute spots or stippled. Fan-like septations or streaks would be indicative of the presence of several enchondromas. Early detection and consistent and repeated monitoring is important in order to prevent and treat any potential bone neoplasms.