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Small extra-adrenal pheochromocytoma causing severe hypertension in an elderly patient.
Authors:Einosuke Mizuta  Toshihiro Hamada  Shin-ichi Taniguchi  Masaki Shimoyama  Takahiro Nawada  Junichiro Miake  Yasuhiro Kaetsu  Li Peili  Kiyosuke Ishiguro  Shingo Ishiguro  Osamu Igawa  Chiaki Shigemasa  Ichiro Hisatome
Affiliation:Department of Genetic Medicine and Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan. einosuke@grape.med.tottori-u.ac.jp
Abstract:We report the case of a 67-year-old woman with severe hypertension caused by an extra-adrenal pheochromocytoma. The tumor was detected by 131I metaiodobenzylguanidine scintigraphy and it was found to be small (2 cm ?) by enhanced CT. After the extirpation of the tumor, the blood pressure of the patient immediately normalized. It should be taken into account that a small extra-adrenal pheochromocytoma can be one of the causes of secondary hypertension in elderly patients. Since small extra-adrenal pheochromocytomas are difficult to detect, it is also important to perform suitable examinations to establish the diagnosis. Furthermore, we emphasize the importance of an accurate diagnosis in elderly patients with pheochromocytoma, for they often have less symptomatology and more severe cardiovascular complications due to refractory hypertension than younger patients.
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