title: [Tumorous space-occupying lesions of the pelvic skeleton. A radiological analysis of 234 cases].
abstract: OBJECTIVE
  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.
authors.affiliation: Institut für Radiologie, St. Johannes Hospital, Duisburg.
authors.forename: R
authors.initials: R
authors.lastname: Erlemann
authors.forename: G
authors.initials: G
authors.lastname: Hötte
authors.forename: G
authors.initials: G
authors.lastname: Edel
authors.forename: S
authors.initials: S
authors.lastname: Blasius
mesh_terms: D000293:Adolescent; D000328:Adult; D000375:Aging / Q000473:pathology; D001859:Bone Neoplasms / Q000145:classification / Q000000981:diagnostic imaging* / Q000473:pathology / Q000556:secondary; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010384:Pelvic Bones / Q000000981:diagnostic imaging* / Q000473:pathology; D011859:Radiography; D012189:Retrospective Studies
vernacular_title: Tumoröse Raumforderungen des Beckenskeletts. Eine radiologische Analyse von 234 Fällen.