Table of Contents Author Guidelines Submit a Manuscript
Case Reports in Pathology
Volume 2017, Article ID 4076159, 3 pages
Case Report

Q Fever Presented as a Large Retroperitoneal Pseudotumoral Mass

1Departments of Pathology, UC Irvine Medical Center, UC Irvine School of Medicine, Orange, CA, USA
2Departments of Pathology, UCLA Medical Center, 10833 Le Conte Ave., Los Angeles, CA 90095, USA

Correspondence should be addressed to Di Lu;

Received 2 August 2017; Revised 11 October 2017; Accepted 18 October 2017; Published 15 November 2017

Academic Editor: Hiroko Kuwabara

Copyright © 2017 Behdokht Nowroozizadeh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. Q fever is an infection caused by Coxiella burnetii, an intracellular organism. Acute infection is most often a benign and asymptomatic process; however, some individuals may go on to develop subacute and persistent localized symptomatic Q fever. As such, the clinical and histopathologic findings of Q fever are widely variable and may be missed if clinical suspicion is not high. Case Presentation. Herein we report the first case of C. burnetii infection presenting as an isolated retroperitoneal mass. A 61-year-old male underwent axillary-bifemoral bypass surgery. His postoperative course was complicated by the discovery of a large retroperitoneal mass. Conclusion. Clinical and histopathologic findings of Coxiella burnetii infection are variable and can be deceiving. These are often nonspecific, especially in its persistent localized infectious stages.