Ruptured Peroneal Mycotic Aneurysm Secondary to Streptococcus pneumoniae Empyema Without Aortic InvolvementGannon, Michael P. BS*; Daya, Sneha S. MD†; Santoro, Peter M. MD†; Ierardi, Ralph P. MD†; Emmons, Wesley W. III MD†Infectious Diseases in Clinical Practice: September 2013 - Volume 21 - Issue 5 - p 320–322 doi: 10.1097/IPC.0b013e318279eb55 Case Reports Abstract Author Information Mycotic aneurysms are rare and associated with a high mortality owing to their common association with endocarditis and aortic aneurysms. We present a case of a right-sided pneumococcal empyema causing a peroneal artery aneurysm and subsequent rupture. The diagnosis and management of peripheral artery mycotic aneurysms are discussed as well as the incidence of Streptococcus pneumoniae as a pathogen. From the *Thomas Jefferson University, Jefferson Medical College and †Christiana Care Health System, Wilmington, DE. Correspondence to: Michael P. Gannon, BS, Department of Medicine, Thomas Jefferson University, Jefferson Medical College, 1025 Walnut St, 805 College, Philadelphia, PA 19107. E-mail: firstname.lastname@example.org. The authors have no funding or conflicts of interest to disclose. © 2013 by Lippincott Williams & Wilkins.