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Evaluation of new sclerotic bone metastases in breast cancer patients during treatment
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Radiology, Oncology and Radiation Science, Radiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Radiology, Oncology and Radiation Science, Radiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Radiology, Oncology and Radiation Science, Oncology.
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2000 (English)In: Acta Radiologica, ISSN 0284-1851, E-ISSN 1600-0455, Vol. 41, no 2, 178-182 p.Article in journal (Refereed) Published
Abstract [en]

PURPOSE:

According to the World Health Organization (WHO) criteria for response of bone metastases to therapy, new lesions indicate progressive disease. We intended to prove that a new sclerotic lesion on conventional radiography may also be a sign of a positive therapeutic response in a previously undetectable lytic metastasis.

MATERIAL AND METHODS:

In a previous placebo-controlled clinical trial of clodronate (Ostac) therapy, 139 breast cancer patients with bone metastases underwent both conventional radiography and bone scan every 6 months for 2 years with 99mTc before and during clodronate treatment. WHO criteria were applied for therapy response evaluation.

RESULTS:

In 24 patients, 52 new sclerotic lesions observed during therapy were selected for re-evaluation of conventional radiographs and bone scans. In 8 of the 24 patients, 17 of 52 new sclerotic lesions (33%) had showed positive uptake on previous bone scans. These lesions were possibly misinterpreted as new when applying WHO criteria.

CONCLUSION:

For better assessment of new sclerotic lesions during treatment, more sensitive techniques, e.g. bone scan, are needed as a complement to conventional radiography.

Place, publisher, year, edition, pages
2000. Vol. 41, no 2, 178-182 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-152994PubMedID: 10741794OAI: oai:DiVA.org:uu-152994DiVA: diva2:414837
Available from: 2011-05-04 Created: 2011-05-04 Last updated: 2017-12-11Bibliographically approved

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