DOI:10.2214/AJR.06.0096 WEB—This is a Web exclusive article. Lemierre Syndrome: An All-But-Forgotten Disease An otherwise healthy 21-year-old man presented to the emergency department with a 1week history of progressively worsening fever, chills, sore throat, nausea, vomiting, and cough. He was toxic-appearing, tachycardic, tachypneic, and hypotensive on arrival. Physical examination findings were significant for erythematous, swollen tonsils without exudate and diffuse bilateral crackles on lung auscultation. Laboratory values revealed an elevated WBC with a left shift and findings compatible with acute kidney failure. A portable chest radiograph showed diffuse parenchymal opacities and bilateral pleural effusions. The patient was admitted to the ICU with the diagnosis of sepsis and was given broad-spectrum antibiotics pending culture results. Despite intensive monitoring and broadspectrum antibiotic therapy, the patient continued to decompensate, requiring endotracheal intubation. Contrast-enhanced CT of the neck and chest was performed, revealing right internal jugular vein thrombosis (Fig. 3A), multiple cavitary pulmonary nodules, and bilateral pleural effusions (Fig. 3B). Thoracentesis confirmed the suspicion of bilateral exudative effusions. On the basis of the clinical history of a recent oropharyngeal infection and the presence of internal jugular vein thrombosis with multiple pulmonary septic emboli, the diagnosis of Lemierre syndrome was suspected and later confirmed with blood cultures positive for Fusobacterium necrophorum. After prolonged treatment with tailored antibiotic therapy and percutaneous drainage of the bilateral exudative effusions, the patient achieved a remarkably full recovery with restoration of baseline renal and pulmonary functions. Lemierre syndrome is a rare clinical entity, with fewer than 160 cases reported since it was first described in the early 1900s [1]. This syndrome consists of internal jugular vein thrombosis after a primary oropharyngeal infection with the development of distant septic emboli [2]. The lungs are most often affected; however, almost any organ may be involved. Classically, Lemierre syndrome occurs in otherwise healthy adolescents and young adults. Appropriate diagnosis is often delayed because of the initial indolent course of the infection and the relative obscurity of the disease. The diagnosis is made with positive blood cultures, usually F. necrophorum, and appropriate imaging findings. Often, imaging findings precede blood culture results; therefore, radiologists play a crucial role in the early recognition of this syndrome [3]. Prompt diagnosis and treatment are necessary to prevent sepsis and subsequent death. O’Brien WT Sr, Kattin GE Jr, Thompson AK William T. O’Brien, Sr. Grant E. Lattin, Jr. Adrianne K. Thompson David Grant U.S. Air Force Medical Center Travis AFB, CA 94535 Note—The views expressed in this material are those of the authors and do not reflect the official policy or position of the U.S. government, the Department of Defense, or the Department of the Air Force.