Key result
Significant extrarenal 99mTc-DTPA uptake was observed in two cases of adrenal tumors (adrenal cortical carcinoma and pheochromocytoma), highlighting them as a diagnostic consideration.
Case Report (n=2)
Adrenal tumors should be considered in the differential diagnosis when abnormal extrarenal 99mTc-DTPA uptake is observed during renal scintigraphy.
Unexpected adrenal uptake on scintigraphy may indicate tumors; leaves open diagnostic utility and prevalence.
Renal dynamic scintigraphy is a crucial diagnostic tool for assessing renal function, yet unexpected findings can provide additional insights into extrarenal conditions. We report 2 rare cases of extrarenal 99m Tc-DTPA uptake associated with adrenal tumors: one adrenal cortical carcinoma and one pheochromocytoma. In both cases, significant tracer accumulation in the adrenal region was observed, highlighting an uncommon but noteworthy diagnostic consideration. These cases emphasize the importance of including adrenal tumors in the differential diagnosis when encountering abnormal 99m Tc-DTPA uptake patterns, offering valuable clinical insights for interpreting atypical imaging findings and broadening diagnostic perspectives.
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Huang et al. (2025) conducted a case report in Adrenal tumors (n=2). 99mTc-DTPA renal scintigraphy was evaluated on Extrarenal 99mTc-DTPA uptake. Significant extrarenal 99mTc-DTPA uptake was observed in two cases of adrenal tumors (adrenal cortical carcinoma and pheochromocytoma), highlighting them as a diagnostic consideration.
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