Diagnosis and Treatment > Signs and Symptoms > Arteriosclerosis

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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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Naoya Toriu Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Masayuki Yamanouchi Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Rikako Hiramatsu Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Noriko Hayami Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Junichi Hoshino Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Akinari Sekine Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Masahiro Kawada Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Eiko Hasegawa Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Tatsuya Suwabe Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Keiichi Sumida Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Toshiharu Ueno Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Naoki Sawa Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan

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Kenichi Ohashi Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan
Department of Pathology, Yokohama City University, Graduate School of Medicine, Yokohama, Japan

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Takeshi Fujii Department of Pathology, Toranomon Hospital, Tokyo, Japan

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Kenmei Takaichi Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan
Okinaka Memorial Institute for Medical Research, Tokyo, Japan

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Motoko Yanagita Department of Nephrology, Kyoto University Graduate School of Medicine, Japan

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Tetsuro Kobayasi Okinaka Memorial Institute for Medical Research, Tokyo, Japan

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Yoshifumi Ubara Nephrology Center and Department of Rheumatology, Toranomon Hospital, Tokyo, Japan
Okinaka Memorial Institute for Medical Research, Tokyo, Japan

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Summary

We report the case of a 67-year-old Japanese woman with type 1 diabetes mellitus. At 47 years of age, her hemoglobin A1c (HbA1c) was 10.0%, and she had overt nephropathy. The first renal biopsy yielded a diagnosis of diabetic nephropathy. Intensive glycemic control was initiated and her HbA1c improved to 6.0%. Renal dysfunction showed no progression for 15 years. At 62 years of age, a second renal biopsy was performed. Glomerular lesions did not show progression but tubulointerstitial fibrosis and vascular lesions showed progression compared with the first biopsy. Intensive glycemic control can prevent the progression of glomerular lesions, but might not be effective for interstitial and vascular lesions.

Learning points:

  • Intensive control of blood glucose can prevent the progression of glomerular lesions.

  • Intensive control of blood glucose may not be able to prevent progression of interstitial and vascular lesions.

  • CSII reduces HbA1c without increasing the risk of hypoglycemia.

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