ArticleClinical nuclear medicine2026
99m Tc EC Renal Scintigraphy in a Rare Case of Retrovesical Kidney: Insights Into Protocol Considerations and Diagnosis.
Article in Clinical nuclear medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
A 28-year-old man presenting with swollen feet underwent a 99m Technetium Ethylene-Dicysteine (EC) renal diuretic scintigraphy to evaluate the renal function, which demonstrated a zone of increased tracer uptake in the retrovesical space, indicative of an ectopic kidney with tracer accumulation in the dilated pyelocalyceal system and good excretion following Lasix administration. SPECT/CT imaging further confirmed the presence of the ectopic kidney, which was positioned horizontally just posterior to the bladder, exhibiting normal cortical thickness with a dilated pyelocalyceal system in its upper portion. This case highlights the consideration of ectopic kidney in the retrovesical masses and emphasizes the critical role of urinary catheterization and performing SPECT/CT imaging for accurately evaluating kidney function in such cases.
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