Successful treatment of primary aldosteronism due to computed tomography-negative microadenoma

Koji Nishizawa, Eijiro Nakamura, Takashi Kobayashi, Toshiyuki Kamoto, Akito Terai, Toshiro Terachi, Osamu Ogawa, Hiroshi Itoh, Kazuwa Nakao

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We report a case of aldosterone-producing microadenoma that was correctly diagnosed and thus treated less invasively by laparoscopic adrenalectomy. A 58-year-old woman presented with palpitation and muscular weakness. She exhibited hypertension, hypokalemia and increased aldosterone excretion with suppressed renin activity. Therefore, primary aldosteronism was suggested. Although adrenal scintigram and computed tomography findings in the adrenal glands were normal, adrenal venous sampling tests indicated an overproduction of aldosterone in the right adrenal gland. We diagnosed an aldosterone- producing microadenoma in the right adrenal gland and performed an adrenalectomy. The patient became normotensive postoperatively and histopathological examination demonstrated a microadenoma, 5 mm in diameter.

Original languageEnglish
Pages (from-to)544-546
Number of pages3
JournalInternational Journal of Urology
Issue number10
Publication statusPublished - 2003 Oct 1
Externally publishedYes


  • Laparoscopic adrenalectomy
  • Microadenoma
  • Primary aldosteronism

ASJC Scopus subject areas

  • Urology


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