Document Detail


Peri-adrenal hemangioma mimicking a pheochromocytoma on metaiodobenzylguanidine (MIBG) scan.
MedLine Citation:
PMID:  21957850     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Pheochromocytomas account for less than one percent of hypertension and are usually suspected because of clinical manifestations, confirmed by laboratory evaluation and subsequently localized by radiology. Higher HU units on pre-contrast CT and hyperintense signal on T2 weighted MRI images are often seen in pheochromocytoma. Metaiodobenzylguanidine (MIBG) scans have been widely used to localize pheochromocytoma and false-positive scans are reported to be rare. We report a hypertensive patient with symptoms consistent with a pheochromocytoma, with a left adrenal mass with a pre-contrast HU of 8 but a 70 HU post-contrast value. No biochemical evidence of catecholamine excess was noted. A MIBG scan was reported as highly suspicious for a pheochromocytoma. Laparoscopic resection of the mass confirmed the presence of a peri-adrenal hemangioma with both capillary and cavernous components. We postulate that the accumulation of MIBG because of the hemangioma was responsible for the false-positive MIBG scan.
Authors:
Nerissa L Licup; Ahmed A Zaza; Rebecca J Copeland; Alan N Peiris
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Tennessee medicine : journal of the Tennessee Medical Association     Volume:  104     ISSN:  1088-6222     ISO Abbreviation:  Tenn Med     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-09-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9609310     Medline TA:  Tenn Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  39-40, 42     Citation Subset:  IM    
Affiliation:
Department of Medicine, Quillen College of Medicine, East Tennessee State University, Johnson City, USA.
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