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Oncology

WHAT DO ‘WORRYING’ BONES TURN OUT TO BE?

The European Musculo-Skeletal Oncology Society (EMSOS)



Abstract

Since1986 we have monitored the actual diagnosis of all cases referred to our Unit with the diagnosis of ‘possible primary malignant bone tumour’. We have excluded all patients referred with a known diagnosis of either a benign condition or known to have bone metastases. In most cases the suspected diagnosis was based on X-rays alone, sometimes supported by further imaging.

Method

Retrospective review of a prospective database that was started in 1986 identifying the actual diagnosis.

Results

There were 5922 patients with a confirmed diagnosis over the 23 year time period of this study. 2205 (37%) were found to have a primary malignant bone sarcoma and 1309 (22%) had a benign bone tumour. 992 patients had a general orthopaedic condition (e.g. geode or a vascular necrosis) whilst 303 (5%) had a haematological malignancy and 289 (4.9%) infection. 533 patients (9%) had metastases. There was a similar pattern of frequency of all diagnoses except for metastatic disease and haematologic malignancy at different ages. The incidence of metastases increased from the age of 35 onwards

Discussion

Analysis of this data has led to an algorithm for investigating ‘worrying’ bones that should lead to earlier diagnosis whilst avoiding unnecessary investigations.