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Takuya Higashitani Division of Endocrinology and Hypertension, Department of Cardiovascular and Internal Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan

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Shigehiro Karashima Division of Endocrinology and Hypertension, Department of Cardiovascular and Internal Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan

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Daisuke Aono Division of Endocrinology and Hypertension, Department of Cardiovascular and Internal Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan

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Seigoh Konishi Division of Endocrinology and Hypertension, Department of Cardiovascular and Internal Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
Department of Internal Medicine, Keiju Medical Center, Nanao, Ishikawa, Japan

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Mitsuhiro Kometani Division of Endocrinology and Hypertension, Department of Cardiovascular and Internal Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan

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Rie Oka Division of Endocrinology and Hypertension, Department of Cardiovascular and Internal Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan

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Masashi Demura Department of Hygiene, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan

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Kenji Furukawa Health Care Center, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa, Japan

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Yuto Yamazaki Department of Pathology, Tohoku University Hospital, Sendai, Miyagi, Japan

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Hironobu Sasano Department of Pathology, Tohoku University Hospital, Sendai, Miyagi, Japan

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Takashi Yoneda Division of Endocrinology and Hypertension, Department of Cardiovascular and Internal Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
Department of Health Promotion and Medicine of the Future, Kanazawa University, Kanazawa, Ishikawa, Japan

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Yoshiyu Takeda Division of Endocrinology and Hypertension, Department of Cardiovascular and Internal Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan

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Summary

Renovascular hypertension (RVHT) is an important and potentially treatable form of resistant hypertension. Hypercortisolemia could also cause hypertension and diabetes mellitus. We experienced a case wherein adrenalectomy markedly improved blood pressure and plasma glucose levels in a patient with RVHT and low-level autonomous cortisol secretion. A 62-year-old Japanese man had been treated for hypertension and diabetes mellitus for 10 years. He was hospitalized because of a disturbance in consciousness. His blood pressure (BP) was 236/118 mmHg, pulse rate was 132 beats/min, and plasma glucose level was 712 mg/dL. Abdominal CT scanning revealed the presence of bilateral adrenal masses and left atrophic kidney. Abdominal magnetic resonance angiography demonstrated marked stenosis of the left main renal artery. The patient was subsequently diagnosed with atherosclerotic RVHT with left renal artery stenosis. His left adrenal lobular mass was over 40 mm and it was clinically suspected the potential for cortisol overproduction. Therefore, laparoscopic left nephrectomy and adrenalectomy were simultaneously performed, resulting in improved BP and glucose levels. Pathological studies revealed the presence of multiple cortisol-producing adrenal nodules and aldosterone-producing cell clusters in the adjacent left adrenal cortex. In the present case, the activated renin-angiotensin-aldosterone system and cortisol overproduction resulted in severe hypertension, which was managed with simultaneous unilateral nephrectomy and adrenalectomy.

Learning points:

  • Concomitant activation of the renin-angiotensin-aldosterone system and cortisol overproduction may contribute to the development of severe hypertension and lead to lethal cardiovascular complications.

  • Treatment with simultaneous unilateral nephrectomy and adrenalectomy markedly improves BP and blood glucose levels.

  • CYP11B2 immunohistochemistry staining revealed the existence of aldosterone-producing cell clusters (APCCs) in the adjacent non-nodular adrenal gland, suggesting that APCCs may contribute to aldosterone overproduction in patients with RVHT.

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Fumiaki Kawano Departments of Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan

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Tadato Yonekawa Neurology, Respirology, Endocrinology and Metabolism, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan

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Hideki Yamaguchi Neurology, Respirology, Endocrinology and Metabolism, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan

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Nobuhiro Shibata Clinical Oncology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan

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