The Journal of Bone and Joint Surgery, Vol 60, Issue 7 966-969, Copyright © 1978 by Journal of Bone and Joint Surgery, Inc
Numerical assessment of bone scintigraphy in primary bone tumors and tumor-like conditions
O Sneppen, J Heerfordt, I Dissing, M Jensen, J Moller and M Norbjerg
Fifty-four tumors or tumor-like conditions in bone were studied by
numerically assessed 99m-technetium polyphosphate scintigraphy. The uptake
was expressed as a ratio of the uptake in the tumor region to the uptake in
a corresponding region in the contralateral part of the body. In the
malignant tumors there was marked variation in the uptake within each
individual tumor group, a variation that rendered a differential diagnosis
impossible. In general, the uptake was fairly high in malignant tumors and
lower in benign ones. A ratio below 1.5 suggested the likelihood that the
lesion was benign. The ratios also varied considerably with the site of the
tumor and the patients' ages. Relatively low ratios were found for tumors
of the trunk and for juxta-articular tumors in children, whereas higher and
more varied ratios were observed in tumors of the peripheral skeleton in
adults. It is concluded that numerically assessed scintigraphy is not a
useful supplement to other methods used for diagnosing bone tumors.
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