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Thyroid uptake and scan as a living study template — I-123 sodium iodide (preferred) vs Tc-99m pertechnetate protocols, medication holds, a facility acquisition journey with Maggoo, Graves / nodule / thyroiditis interpretation cases, and board-style questions.
Facts follow the protocol selected under Image acquisition (I-123 vs Tc-99m, top-right toggle). Values are typical SNMMI teaching ranges.
Holds shared across the I-123 and Tc-99m protocols. Click a medication / exposure for why it matters and what happens if it is not held.
Top-down facility view. Maggoo follows the preferred I-123 protocol: check-in → swallow an I-123 NaI capsule → return in 4–6 hours for a thyroid-probe uptake measurement and pinhole imaging → optional 24-hour uptake and imaging → departure.
Ready. Press Play to watch Maggoo’s study day.
Open-access clinical thyroid scintigrams (Radiopaedia, CC BY-NC-SA) for selected abnormal patterns, with synthetic schematics for the remaining cards — Graves (including a prominent pyramidal lobe), toxic adenoma, toxic MNG, cold nodule, and thyroiditis.
Board-style items on radiopharmaceutical choice, medication holds, uptake physiology, and interpretive pitfalls.