Fig. 1

Representative images during the clinical course. A: CT image at the diagnosis of sole PCC. B: ¹²³I-MIBG scintigraphy image at the diagnosis of sole PCC. C: ¹²³I-MIBG scintigraphy image at the recurrence of PCC 7 years after surgery. D: SRS image at the diagnosis of recurrent PCC with simultaneous ACTH production. E–G: CT images at the terminal stage. Arrow in G indicates right adrenal subcortical bleeding. Double arrow in G indicates the maximum tumor diameter. MIBG, metaiodobenzylguanidine; SRS, somatostatin receptor scintigraphy