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The Diagnostic Role of Radionuclide Imaging in Evaluation of Patients with Nonhypersecreting Adrenal Masses

Simone Maurea, Michele Klain, Ciro Mainolfi, Mario Ziviello and Marco Salvatore

Medicina Nucleare e Radiodiagnostica, Istituto Nazionale dei Tumori, Napoli; and Centro per la Medicina Nucleare del Consiglio Nazionale delle Ricerche, Università Federico II, Napoli, Italy



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FIGURE 1. Patient with nonhypersecreting left adrenal adenoma. (A) T1-weighted (repetition time/echo time = 600/15) abdominal MR axial scan shows round left adrenal mass. (B) Abdominal posterior view of norcholesterol image shows round area of tracer uptake in left adrenal bed; diffuse physiologic activity is present in liver and through left bowel.

 


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FIGURE 2. Patient with nonhypersecreting right adrenal pheochromocytoma. (A) T1-weighted (repetition time/echo time = 600/15) abdominal MR axial scan shows round right adrenal mass. (B) Abdominal posterior view of MIBG image shows round area of intense tracer uptake in right adrenal bed.

 


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FIGURE 3. Patient with nonhypersecreting right adrenal carcinoma. (A) T1-weighted (repetition time/echo time = 600/15) abdominal MR coronal scan shows right adrenal mass. (B) Uncorrected abdominal coronal FDG PET scan shows intense tracer uptake by right adrenal lesion; significant physiologic activity is detectable in both renal pelves.

 


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FIGURE 4. Patient with left adrenal metastasis from lung. (A) Postcontrast abdominal CT scan shows inhomogeneous left adrenal lesion. Round cystic lesion of left kidney is detectable. (B) Uncorrected whole-body FDG PET image shows abnormal increased tracer uptake by adrenal mass, primary lung tumor, and lymph nodal metastases of mediastinum; physiologic activity is present in heart as well as in neck and pelvic muscular tissues.

 





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