Lesión lítica en el Radio distal

giant cell tumor of the bone is a controversial neoplasm. in most cases, it behaves as a benign tumor, but approximately 15% of cases will be diagnosed as malignant during the clinical course. in the initial phase, malignancy cannot be determined neither by radiological appearance nor by histopathology; instead, recurrences of the tumor will most consistently indicate malignancy. in this report, we present the case of a 47 year old male patient with a suspicious lesion in the distal radius and we define the radiological signs that suggest diagnosis of giant cell tumor of the bone.