[Is T2-weighted imaging reliable in the differential diagnosis of an adrenal mass? Dependence of signal intensity on the size of tumors].
We reviewed T2-weighted images of 41 adrenal tumors. There were 25 adenomas and 16 non-adenomas. We compared the signal intensity of the adrenal tumors with that liver and classified the tumor/liver intensity ratio (TLR) into five categories; very low (much less than), low (less than), iso-intense (=), high (greater than), and very high (much greater than). The size of adenomas in diameter ranged between 8 mm-50 mm. TLR of 92% of adenomas less than 20 mm (13 cases) were (less than) or (=); when adenomas exceeded 20 mm (12 cases), 75% were (greater than) or (much greater than). TLR of non-adenomas all (greater than) or (much greater than).
Yashiro
N
N
Iio
M
M
Suzuki
M
M
D000236:Adenoma / Q000175:diagnosis* / Q000473:pathology; D000310:Adrenal Gland Neoplasms / Q000175:diagnosis* / Q000473:pathology; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged