Cerebral Infarction Mimicking Skeletal Metastases on Tc-99m MDP Bone Scintigraphy / 대한핵의학회잡지
Korean Journal of Nuclear Medicine
;
: 433-435, 2000.
Article
Dans Coréen
| WPRIM
| ID: wpr-160751
ABSTRACT
A 60-year-old male with carcinoma of the prostate and cerebral infarction underwent a Tc-99m MDP bone scintigraphy for the evaluation of skeletal metastases. Bone scintigraphy (Fig. 1) showed multiple areas of increased uptake of Tc-99m MDP in the skull, spine, and ribs representing skeletal metastases. Two different patterns of uptake occurred in the skull region (Fig. 1A-C); one represents bony metastasis and the other represents cerebral infarction. The shape, size, location, intensity, and border of the increased uptake differed between the two lesions. An oval-shaped pattern with smaller size, greater intensity and more sharply defined border in the frontal region was consistent with bony metastasis. A rectangular-shaped pattern with larger size, lesser intensity and relatively indistinct border in the temporo-parieto-occipital region was consistent with cerebral infarction. Increased uptake of bone-seeking radiotracers in cerebral infarction has been reported previously.1-4) A suggested mechanism by which bone-seeking radiotracers accumulate in the necrotizing cerebral tissue is an alteration of the blood-brain barrier induced during cerebral infarction, which results in entry of the radiotracers into the extracellular space of the brain.4) Brain CT (Fig. 2) performed 7 days before and one month after the bone scintigraphy revealed lesions on the right temporo-parieto-occipital region consistent with acute hemorrhagic and chronic cerebral infarction, respectively.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Prostate
/
Côtes
/
Crâne
/
Rachis
/
Encéphale
/
Barrière hémato-encéphalique
/
Scintigraphie
/
Infarctus cérébral
/
Médronate de technétium (99mTc)
/
Espace extracellulaire
Limites du sujet:
Humains
/
Mâle
langue:
Coréen
Texte intégral:
Korean Journal of Nuclear Medicine
Année:
2000
Type:
Article
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