Whole-Body MR Imaging for Detection of Bone Metastases in Children and Young Adults
Comparison with Skeletal Scintigraphy and FDG PET
Heike E. Daldrup-Link1,2,
Christiane Franzius3,
Thomas M. Link1,2,
Daniela Laukamp1,
Joachim Sciuk3,
Heribert Jürgens4,
Otmar Schober3 and
Ernst J. Rummeny1,2
1
Department of Clinical Radiology, University Hospital of
Münster, 48129
Münster, Germany.
2
Present address: Department of Radiology, Technical University of Munich,
Ismaninger Str. 22, 81625 Munich, Germany.
3
Department of Nuclear Medicine, University Hospital of
Münster, Münster,
Germany.
4
Department of Pediatric Oncology, University Hospital of
Münster, Münster,
Germany.

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Fig. 1. Representative whole-body MR images of 14-year-old boy with
Langerhans' cell histiocytosis. Nine slabs of T1-weighted spin-echo images
(TR/TE, 500/15) with 10-15 slices each cover head, upper spine, lower spine,
thorax, abdomen, and upper and lower extremities. Lesion from Langerhans' cell
histiocytosis is depicted in right femur (arrowhead).
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Fig. 2A. 6-year-old boy with rhabdomyosarcoma of right axillary
region. Whole-body MR images using both short tau inversion recovery and
spin-echo pulse sequences (TR/TE, 500/15) show only one lesion in metacarpal
bone V of right hand (arrowheads) that was considered equivocal
because of partial volume effects.
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Fig. 2B. 6-year-old boy with rhabdomyosarcoma of right axillary
region. Skeletal scintigram confirmed lesion (arrowhead) in
metacarpal bone V.
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Fig. 2C. 6-year-old boy with rhabdomyosarcoma of right axillary
region. FDG PET scan shows lesion (arrowhead) in metacarpal bone V
but also shows additional metastasis in capitate bone (arrow) that
was verified by follow-up studies.
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Fig. 3A. 8-year-old girl with Ewing's sarcoma of pelvis. Whole-body MR
image delineates primary tumor in right os ilium (arrowheads) and
metastasis in fourth lumbar vertebra (arrow).
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Fig. 3B. 8-year-old girl with Ewing's sarcoma of pelvis. Skeletal
scintigram shows primary tumor (arrowheads) but misses
metastasis.
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Fig. 3C. 8-year-old girl with Ewing's sarcoma of pelvis. FDG PET scan
detected both primary tumor (arrowheads) and metastasis in fourth
lumbar vertebra (arrow).
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Fig. 4A. 3-year-old boy with Langerhans' cell histiocytosis that
showed initial manifestation in left femur (not shown). T1-weighted MR image
clearly delineates additional lesion (arrow) near left orbit.
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Fig. 4B. 3-year-old boy with Langerhans' cell histiocytosis that
showed initial manifestation in left femur (not shown). Skeletal scintigram
shows increased radionuclide uptake (arrowheads) in same region.
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Fig. 4C. 3-year-old boy with Langerhans' cell histiocytosis that
showed initial manifestation in left femur (not shown). FDG PET scan shows
high glucose metabolism in brain, but lesion in orbit could not be seen.
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Fig. 5A. 9-year-old boy with osteosarcoma of right humerus.
T1-weighted MR image (A) and skeletal scintigram (B) do not
exhibit any suspicious lesions of lower extremities.
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Fig. 5B. 9-year-old boy with osteosarcoma of right humerus.
T1-weighted MR image (A) and skeletal scintigram (B) do not
exhibit any suspicious lesions of lower extremities.
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Fig. 5C. 9-year-old boy with osteosarcoma of right humerus. FDG PET
scan shows focally increased radionuclide accumulation in left tibia
(arrowhead), which was not verified by clinical and imaging follow-up
studies.
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