There are many potential causes of FUO. Most cases are due to unusual presentations of common diseases rather than rare or exotic diseases. The key to establishing the diagnosis is a careful history and careful repeated examinations followed by targeted investigations.

This study involved 115 cases of fever of unknown origin (FUO) patients who were admitted to the Department of Medicine, Siriraj Hospital from May 1999 to November 2000. Among the patient sera screened by ELISA for IgG Hantavirus, five were positive for IgG Hantavirus-reacting antibodies and eight tested positive for IgM Hantavirus-reacting antibodies. One serum had both IgG and IgM antibodies....

Anaplastic large cell lymphoma (ALCL), a well-recognized entity, presents a varied clinical picture and epidemiological characteristics associated with the expression of the anaplastic lymphoma kinase (ALK) protein. When classic symptoms are present (weight loss, fever, and night sweats) and combine with enlarged and easily accessible peripheral lymph nodes, diagnosis is not that difficult. But...

OBJECTIVE To assess the efficacy of fluorine-18 fluorodeoxyglucose positron emission tomography ((18)F-FDG PET)/computed tomography (CT) in the diagnosis of patients with fever of unknown origin (FUO), who were finally diagnosed as lymphoma. SUBJECTS AND METHODS A retrospective study was performed in the First Affiliated Hospital, School of Medicine of Zhejiang University, China, from March 2...

Fever of unknown origin (FUO) is a common syndrome. A total of 94 patients (57 men and 37 women; mean age, 56.3 +/- 19 years, range, 18-86 years) who met the criteria of FUO were included in this study. Mycobacteriosis was diagnosed in 22 (23%) of these patients (13 men and 9 women), including 9 with disseminated disease and 13 with pulmonary disease. There was no significant statistical differ...

OBJECTIVE Fever of unknown origin (FUO) is a challenge for the physician and needs use of clinical, laboratory, and imaging studies and also invasive and/or non-invasive interventions to detect the etiology. The aim of present study was to assess the role of FDG PET/CT in determining the etiology in patients with FUO. MATERIAL AND METHODS Twenty-four patients (median age 52, range 5-77 years,...

Fever of unknown origin (FUO) was originally defined as recurrent fever of 38.3 degrees C or higher, lasting 2-3 wk or longer, and undiagnosed after 1 wk of hospital evaluation. The last criterion has undergone modification and is now generally interpreted as no diagnosis after appropriate inpatient or outpatient evaluation. The 3 major categories that account for most FUOs are infections, mali...

INTRODUCTION Fever of unknown origin (FUO) can be defined as a rectal temperature higher than 38.3 degrees C on several occasions over more than 3 weeks, the diagnosis of which remains uncertain after initial investigations. Identification of the causes and management of FUO in children is an important role of rural primary care physicians, and is guided by thorough history-taking and repeated ...