disseminated bone metastasis from breast cancer. · pdf filedisseminated bone metastasis from...
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![Page 1: Disseminated Bone Metastasis from breast cancer. · PDF fileDisseminated Bone Metastasis from breast cancer. Lesions in the vertebral ... scan showing no definite evidence of acute](https://reader031.vdocuments.net/reader031/viewer/2022030408/5a88c68c7f8b9ac96a8e8f99/html5/thumbnails/1.jpg)
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Whole Body Bone Scan: Anterior and
posterior images are acquired
approximately 2-3 hrs after the
intravenous administration of 20-30
mCi of Tc99m MDP/HDP. Additional
regional spot views can be acquired in
any projection desired. The study is
very sensitive for bone abnormalities
but is non specific. Most common
reason to do a bone scan is to screen
for bone metastasis in patients with
lung, breast and prostate cancer, as
bone mets. from these cancers are
osteoblastic. Tracer uptake reflects
blood flow and bone turnover. The
scan on the left shows normal
distribution of the tracer, mild normal
soft tissue activity, excretion from the
kidneys into the bladder, scoliosis and
mild associated degenerative changes
in the lumbar spine.
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Disseminated Bone Metastasis from
breast cancer. Lesions in the vertebral
bodies and the femur neck, which are
at the risk for pathological fracture
should be mentioned separately.
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Diffuse metastatic disease, from
prostate cancer. In a super scan from
bone metastasis, there is intense
diffuse uptake in the skeleton (in the
distribution of active marrow) and
minimal activity in the kidneys,
bladder, and the soft tissues.
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Hypertrophic Pulmonary
Osteoarthropathy (HPOA), from lung
cancer. HPOA has a variety of
causes. Linear cortical uptake can
also be seen with shin splints.
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Increased tracer activity in the stomach
from metastatic calcification. Other
causes include free pertechnetate and
necrotising enterocolitis. Other organs
involved in metastatic calcification are
lungs and kidneys.
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Increased tracer activity in the heart
from recent myocardial infarction. Other
causes include recent stress test,
amyloidosis, cardiomyopathy and
adriamycin cardiotoxicity
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Paget’s disease
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Paget’s disease. Involvement
of L4 resembles the Mickey
mouse sign.
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Mickey Mouse sign of Paget’s Disease.
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Normal pediatric bone scan showing
increased tracer activity in the
epiphysis.
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Sickle Cell Disease: bone marrow
expansion from anemia (increased
bone vs soft tissue activity),
splenic uptake from repeated
infarctions and calcifications.
Increased uptake can be seen in
the kidneys from iron overload,
from multiple transfusions.
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Intense activity in the neck from
recent I131 therapy for toxic
multinodular goiter. Degenerative
changes are seen in the spine. Stress
related increased periprosthetic
activity in the left knee.
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www.nuclearmd.comIncreased activity in a large fibroid uterus.
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Accidental arterial injection of the tracer.
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Muscle activity from rhabdomyolysis.
Other causes of muscle uptake include
myositis occificans, trauma, burns and
peripheral vascular disease with
ischemia
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Diffusely increased bone activity (SUPER
SCAN) (increased bone vs soft tissue
activity) from hyperparathyroidism. Other
causes: Metabolic bone diseases, some
hematological diseases, diffuse metastatic
disease, and renal osteodystrophy.
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Delayed bone scan images showing stress fracture of the left proximal femur.
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Delayed images from the bone scan of a runner showing stress fracture
at the right distal tibial medial cortex.
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Blood pool and delayed images from the three phase bone scan of a runner
showing shin splints. Blood pool images are usually negative
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Delayed images from a bone scan showing fracture of the left 6th rib.
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Blood pool and delayed images from a three phase bone scan of a runner
showing fracture of the left cuboid.
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Coronal SPECT images from a bone scan showing spondylolysis of the right
L5 posterior element (pars interarticularis fracture)
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Blood pool and delayed images from a three phase bone scan of a woman, c/o
pain after fall, negative X rays, showing fracture of the left greater trocanter.
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Three phase bone scan of a runner showing fracture of the left 5th distal
metatarsal, positive on all three phases and stress related changes in the 1st
and 4th metatarsals.
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SPECT coronal images showing increased activity in both SI joints,
consistent with sacroilitis.
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Acute Osteomyelitis of the right calcaneum, positive on all three phases.
Patient presenting with non healing ulcer.
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Blood pool and delayed images from the bone scan, and the images from
indium scan, showing acute osteomyelitis of the distal phalange of the left
index finger.
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Blood pool and delayed images from the bone scan, and the images from
indium scan, showing acute osteomyelitis of the distal phalange of the left
middle finger.
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Blood pool images and delayed images from the bone scan, and the indium
scan, showing septic loosening of the right knee prosthesis.
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Blood pool images and delayed images from the bone scan, the indium scan,
and the marrow scan, showing aseptic loosening of the right knee prosthesis.
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Delayed images from the bone scan, the indium scan, and the marrow scan,
showing septic loosening of the right knee prosthesis.
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Delayed images from the bone scan, the indium scan, and the sulfur colloid
scan showing no definite evidence of acute osteomyelitis.
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Blood pool and delayed images from the bone scan, and the images from
indium scan, showing no definite evidence of acute osteomyelitis.
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Blood pool and delayed images from the bone scan, and the images from
indium scan, showing acute osteomyelitis of the left lateral malleolus.
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Blood pool and delayed images from the bone scan, and the images from indium
scan, showing findings negative for acute osteomyelitis of the left ischium.
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Blood pool and delayed images from the bone scan, showing Honda sign
of sacral insufficiency fracture.
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Blood pool and delayed images from the bone scan, (in a diabetic patient
with renal insufficiency), and the images from indium scan, showing acute
osteomyelitis of the distal phalange of the right great toe.
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Bone, indium, and marrow scan showing no definite evidence of acute
osteomyelitis. Increased periprosthetic activity in the left hip is likely from
aseptic loosening.