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Urinary steroid profile in adrenocortical tumors
E Kikuchi1, H Yanaihara, J Nakashima
1Department of Urology, Keio University School of Medicine, Tokyo, Japan.
Summary
Analyzing urinary steroid profiles helps diagnose adrenal tumors. Different steroid patterns distinguish benign adrenal adenomas from malignant adrenocortical carcinomas, aiding clinical decisions.
Area of Science:
- Endocrinology
- Oncology
- Analytical Chemistry
Background:
- Urinary steroid profiling is a potential diagnostic method for adrenocortical tumors.
- Accurate differentiation between benign and malignant adrenal tumors is clinically significant.
Purpose of the Study:
- To determine urinary steroid profiles in patients with adrenocortical tumors.
- To evaluate the diagnostic validity of urinary steroid profiles for distinguishing benign from malignant adrenal diseases.
Main Methods:
- Urinary steroids were extracted from patient samples.
- Steroids were derivatized to methyloxime-trimethylsilyl ethers.
- Gas chromatography/mass spectrometry was used for analysis.
Main Results:
- Patients with primary hyperaldosteronism (adrenal adenomas) showed increased 18-hydroxycorticosterone and aldosterone metabolites.
- Cushing's syndrome patients had elevated 11-deoxycortisol, cortisol, 18-hydroxycortisol, and cortisone metabolites.
- Adrenocortical carcinoma patients exhibited increased 11-deoxycortisol or 3β-hydroxy-5-ene steroid metabolites.
Conclusions:
- Distinct urinary steroid profiles were observed for adrenal adenomas and adrenocortical carcinomas.
- Urinary steroid profiling demonstrates diagnostic validity in differentiating benign adrenal adenomas from malignant adrenocortical carcinomas.