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Application of CYP11B2 immunohistochemistry in the histopathological diagnosis of primary aldosteronism / 中华内分泌代谢杂志
Chinese Journal of Endocrinology and Metabolism ; (12): 939-944, 2019.
Article in Chinese | WPRIM | ID: wpr-800753
ABSTRACT
Objective@#To evaluate the value of CYP11B2 immunohistochemistry in the histopathological diagnosis of primary aldosteronism(PA) among Chinese population.@*Methods@#Ninety-six cases of unilateral PA patients were retrospectively enrolled, and with 15 cases of non-hyperfunctioning adenoma, and 15 cases of cortisol producing adenoma as control. CYP11B2 immunohistochemistry was performed in the tumor sections of these patients and was analysed by semi-quantified method. The positive rate of CYP11B2 in tumor specimen of all cases enrolled was calculated and PA patients were subtypely classified based on their histopathological features and CYP11B2 expressions.@*Results@#The immune-positive rate of CYP11B2 in the PA group was 91.7% (88/96), with the control group being 6.7% (2/30, P<0.001). Subgroup analysis revealed that the immune-positive rate of CYP11B2 in the aldosterone producing adenoma group and unilateral hyperplasia group were 91.8% (78/85) and 90.9% (10/11), respectively. Based upon histopathological feature and CYP11B2 immunohistochemistry, PA patients were further subtypely classified as aldosterone producing adenoma (85/96), unilateral diffuse adrenocortical hyperplasia (7/96), unilateral mono-adrenocortical micronodules (1/96), unilateral multiple adrenocortical micronodules (1/96), and unilateral multiple aldosterone-producing cell clusters (multiple APCCs, 2/96).@*Conclusion@#CYP11B2 immunohistochemistry may serve as an useful tool for the histopathological diagnosis of PA.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Diagnostic study Language: Chinese Journal: Chinese Journal of Endocrinology and Metabolism Year: 2019 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Diagnostic study Language: Chinese Journal: Chinese Journal of Endocrinology and Metabolism Year: 2019 Type: Article