Gallium-67 uptake by a benign adrenocortical adenoma.
A 55-yr-old man presented with an atypical relapsing meningitis and was found to have intense unilateral adrenal uptake by 67Ga imaging. Computed tomography showed a 4-cm right adrenal mass which was hypointense on the T1-weighted images and mildly hyperintense on the T2-weighted images of a magnetic resonance (MR) scan. At surgery, a coincidental benign adrenocortical adenoma was found. Because 67Ga uptake is usually associated with inflammatory or malignant lesions and malignant adrenal lesions are hyperintense on T2-weighted MR images, these findings contributed to diagnostic uncertainty in this patient. Thus, a nonhyperfunctional adrenocortical adenoma may be associated with abnormal 67Ga uptake and atypical MR findings.
Jackson
J A
JA
Department of Medicine, Radiology, Scott and White Clinic, Temple, TX 76508.
Naul
L G
LG
Montgomery
J L
JL
Carpentier
W R
WR
Roberts
J W
JW
D000236:Adenoma / Q000000981:diagnostic imaging* / Q000473:pathology; D000302:Adrenal Cortex / Q000000981:diagnostic imaging / Q000473:pathology; D000306:Adrenal Cortex Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D005710:Gallium Radioisotopes; D006801:Humans; D008297:Male; D008875:Middle Aged; D014055:Tomography, Emission-Computed
D005710:Gallium Radioisotopes