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Malignant abdominal paraganglioma presenting as a giant intra-peritoneal mass.
MedLine Citation:
PMID:  22902800     Owner:  NLM     Status:  PubMed-not-MEDLINE    
INTRODUCTION: Paraganglioma is a malignant tumor that arises from the extra adrenal paraganglionic cells of the sympathetic or parasympathetic systems. Herein, we present a case of abdominal mass of unknown histology that underwent a very difficult surgical mass resection. Its final histologic diagnosis was non-functional paraganglioma that was presented as a huge intra-peritoneal mass.
PRESENTATION OF CASE: The patient was a 55-year-old Iranian lady who referred to our center with a giant abdominal mass. Fine needle aspiration (FNA) biopsy showed undifferentiated carcinoma. After laparotomy for mass resection pathology evaluation revealed; malignant paraganglioma, non-metastatic type. Further post-operative patients evaluations showed that the tumor was sporadic in nature and the subsequent patient's natural history was uneventful.
DISCUSSION: Pathologic evaluations have key roles in the exact diagnosis of abdominal masses with unidentified sources. For the paragangliomas, all of them should be regarded malignant until proved otherwise. However, combined use of biochemical markers, immunohistochemical techniques (IHC), and genetic analysis have key roles in the diagnosis and treatment of paragangliomas. Additionally, surgical removal is the proved curative way of paraganglioma treatment.
CONCLUSION: Asymptomatic intra-peritoneal paraganglioma is very rare, especially its malignant variety. This case emphasizes that full pathologic investigation would reveal the exact nature of idiopathic abdominal masses, especially in the state of absence of typical clinical and para-clinical symptoms.
Mohammad Kazem Moslemi; Maryam Abolhasani; Jamshid Vafaeimanesh
Publication Detail:
Type:  Journal Article     Date:  2012-07-28
Journal Detail:
Title:  International journal of surgery case reports     Volume:  3     ISSN:  2210-2612     ISO Abbreviation:  Int J Surg Case Rep     Publication Date:  2012  
Date Detail:
Created Date:  2012-09-11     Completed Date:  2012-10-02     Revised Date:  2013-04-02    
Medline Journal Info:
Nlm Unique ID:  101529872     Medline TA:  Int J Surg Case Rep     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  537-40     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Surgical Associates Ltd. Published by Elsevier Ltd. All rights reserved.
Department of Urology, Kamkar Hospital, School of Medicine, Qom University of Medical Sciences, Qom, Iran.
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