Imaging & Radiology · Multiple Systems · Hard
Radionuclide
Meaning: Radioactive isotope given for nuclear imaging to show physiological activity in tissues.
In practice: Bone scans show hot spots at healing fractures and metastases, though myeloma deposits often appear cold.
Quick check
Two questions on related imaging & radiology words.
Which word means: Smooth, wavy erosion of a bone surface caused by pressure from an adjacent lesion.
Answer: Scalloping
Which word means: Paramagnetic contrast agent injected intravenously to enhance MRI images.
Answer: Gadolinium
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