Japanese Journal of Clinical Oncology, Vol 27, Issue 5 346-349, Copyright © 1997 by Foundation for Promotion of Cancer Research
J Ueda, K Takayasu, Y Muramatsu, R Iwata, T Kosuge, M Sakamoto and M Satake
A 5-cm pheochromocytoma located in segment 7 of the liver was found
incidentally in a 45-year-old man with mild diabetes mellitus and
hypertension, and resected. The tumor was demonstrated by computed
tomography and magnetic resonance imaging to have completely invaginated
itself into the liver and to be receiving blood from a dilated right
hepatic artery alone. Surgery revealed the hepatic mass to be tightly
adherent to the right adrenal gland. The histopathologic diagnosis was
pheochromocytoma growing exophytically from the right adrenal gland. There
was no association with multiple endocrine neoplasia type 1 and type 2. A
postoperative 131I metaiodobenzylguanidine scan revealed no accumulation,
and the patient is currently doing well without recurrence or hypertension
one year after the operation. A pheochromocytoma deeply invaginating into
the liver should be considered in the differential diagnosis of primary
hypervascular hepatic tumors.
ORIGINAL ARTICLE
Pheochromocytoma growing exophytically from the right adrenal gland and invaginating into the liver
Department of Diagnostic Radiology, National Cancer Center Hospital, Tokyo, Japan.
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