123I-MIBG Scintigraphy-negative Pheochromocytoma Without Hypertension Found During Follow-up for Non-functioning Adrenal Incidentaloma

Tomohiko Kimura; Yoshiro Fushimi; Yuichiro Iwamoto; Junpei Sanada; Fuminori Tatsumi; Masashi Shimoda; Shuhei Nakanishi; Tomoatsu Mune; Kohei Kaku; Hideaki Kaneto

doi:10.2169/internalmedicine.5857-25

¹²³I-MIBG Scintigraphy-negative Pheochromocytoma Without Hypertension Found During Follow-up for Non-functioning Adrenal Incidentaloma

Tomohiko Kimura, Yoshiro Fushimi, Yuichiro Iwamoto, Junpei Sanada, Fuminori Tatsumi, Masashi Shimoda, Shuhei Nakanishi, Tomoatsu Mune, Kohei Kaku, Hideaki Kaneto

著者情報

キーワード: adrenal incidentaloma, adrenal adenoma, pheochromocytoma, noradrenaline, ¹²³I-MIBG scinticraphy

ジャーナルオープンアクセス早期公開

論文ID: 5857-25

DOI https://doi.org/10.2169/internalmedicine.5857-25

詳細

抄録

A 37-year-old Japanese female presented with stomach ache and was found to have a 21-mm adrenal incidentaloma on abdominal computed tomography (CT). Initial tests, including a 1 mg dexamethasone suppression test, showed normal cortisol levels. Over 3 years, the tumor enlarged to 32 mm, and she developed sweating and palpitations. Elevated adrenaline and noradrenaline levels suggested a pheochromocytoma, although MIBG scintigraphy showed no accumulation. Laparoscopic left adrenalectomy was performed, and the tumor was confirmed as a pheochromocytoma. Postoperatively, the patient's symptoms and catecholamine levels normalized. This case emphasizes the need for ongoing monitoring of adrenal incidentalomas.

責任著者(Corresponding author)

J-STAGEへの登録はこちら（無料）