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  • Title: [Tumorous space-occupying lesions of the pelvic skeleton. A radiological analysis of 234 cases].
    Author: Erlemann R, Hötte G, Edel G, Blasius S.
    Journal: Rofo; 1995 Oct; 163(4):283-9. PubMed ID: 7579213.
    Abstract:
    PURPOSE: From the material of a bone tumour record file, an attempt was made to determine criteria enabling radiographic prediction of malignancy and tumour entity of lesions of the pelvis. METHODS: Patients' age, location and radiographic morphology of 234 space-occupying lesions of the pelvis were analysed retrospectively. RESULTS: 62.8% of all lesions were malignant, and the portion of malignant tumours increased with increasing age. While 68.0% of the lesions were found in the ilium, 18.8% in the pubis and 13.2% in ischium, the proportion of benign and malignant lesions did not vary in the different bones. Lesions showing a growth rate according to Lodwick grade IA and to IB were benign in 100% and in 82.0%, respectively. In contrast, tumours of grade II or III were malignant in 89.1% and 88.0% of cases, respectively. CONCLUSIONS: By the construction of subgroups by combining the patients' age and growth rate, the prediction of the malignant potential of a lesion increased significantly. The younger the patient, the more aggressively a benign lesion may grow, while the older the patient the slower a malignant tumour may grow. Prediction of the tumour entity is rarely possible.
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