Fever of Unknown Origin: Causes & Reasons

Possible Causes for Fever of Unknown Origin

It should be included in the differential diagnosis of fever of unknown origin and any lymphadenopathy syndrome. [ncbi.nlm.nih.gov]

Bartonella cat scratch disease lymphadenopathy fever of unknown origin hepatosplenic disease Accepted October 8, 2007. [doi.org]

Applicable To Fever NOS Fever of unknown origin [FUO] Fever with chills Fever with rigors Hyperpyrexia NOS Persistent fever Pyrexia NOS cat-scratch A28.1 Lymphoreticulosis [icd10data.com]

Q Fever

The differential diagnosis of fever of unknown origin (FUO) includes infectious, neoplastic, rheumaticinflammatory and miscellaneous diseases. [ncbi.nlm.nih.gov]

We describe the cases of two pregnant women remote from term who presented with premature contractions and fever of unknown origin. [ncbi.nlm.nih.gov]

Q fever, caused by Coxiella burnetii, can present as an outbreak of acute disease ranging from asymptomatic disease, pneumonia, hepatitis or fever of unknown origin, which [ncbi.nlm.nih.gov]

Infectious Mononucleosis

Fever of unknown origin (FUO) refers to fevers of > 101 °F that persist for > 3 weeks and remain undiagnosed after a focused inpatient or outpatient workup. [ncbi.nlm.nih.gov]

Aaron R Kosmin and Bennett Lorber, Specific Tests in the Diagnosis of Fever of Unknown Origin, Fever of Unknown Origin, 10.3109/9781420019582.015, (159-208), (2010) ., Ii [dx.doi.org]

Factitious Disorder

[…] of unknown origin. [ncbi.nlm.nih.gov]

Keywords Fever of unknown origin Microcrystalline cellulose emboli Catheter-associated bloodstream infections Factitious disorder Background Fever of unknown origin (FUO) [bmcresnotes.biomedcentral.com]

[…] of unknown origin in prospective studies Etiology and Pathophysiology The psychological basis is thought to be an unresolved sense of deprivation from childhood that, in [unboundmedicine.com]

Brucellosis

CLINICAL PRESENTATION AND INTERVENTION: A 70-year-old woman presented with pancytopenia and fever of unknown origin (FUO). [ncbi.nlm.nih.gov]

Differential diagnosis of fever of unknown origin (FUO) misdiagnosed could result, as in our case, in the administration of inappropriate antimicrobial therapy. [ncbi.nlm.nih.gov]

Brucellosis can present as a fever of unknown origin. [infectiousdiseaseadvisor.com]

Familial Mediterranean Fever

Here, we present a kidney transplant patient with a late diagnosis of E148Q mutation-positive familial Mediterranean fever as the cause of fever of unknown origin. [ncbi.nlm.nih.gov]

A 65-year-old Japanese female undergoing hemodialysis for 32 years was referred to our hospital with a fever of unknown origin (FUO) following cervical laminoplasty. [ncbi.nlm.nih.gov]

The patient frequently complained of general fatigue and fever of unknown origin. [ncbi.nlm.nih.gov]

Liver Abscess

Some patients may only report a fever of unknown origin as diagnosis could be missed on prior clinical assessment. [healthhype.com]

Brucella has been known to cause pyrexia of unknown origin. 9-year-old boy with fever and abdominal pain; multiple abscesses within the liver on ultrasonography. [ncbi.nlm.nih.gov]

Nonetheless, other patients only present with fever, before which we must think of an LA, especially if the fever origin is unknown. [scielo.org.co]

Fabry Disease

KEYWORDS: Algorithm; Diagnosis; FUO; Fabry disease; Fever of unknown origin; RFUO; Rare diseases; Recommendations; Recurrent fever of unknown origin [ncbi.nlm.nih.gov]

Case 2 A 16‑year‑old male presented in March 2002 with a fever of unknown origin and splenomegaly. The investigations revealed normal renal functions. [amhsr.org]

Abstract Fever of unknown origin (FUO) is a rather rare clinical syndrome representing a major diagnostic challenge. [ncbi.nlm.nih.gov]

Churg-Strauss Syndrome

The patient had a fever of unknown origin, severe headache, progressing left ophthalmoplegia, and visual acuity disturbance. [ajnr.org]

Knockaert DC, Vanneste LJ, Bobbaers HJ (1993) Fever of unknown origin in elderly patients. J Am GeriatrSoc 41: 1187 Google Scholar 56. [link.springer.com]

Case Report A 54-year-old woman was admitted to our hospital with a fever of unknown origin, severe headache, progressive ophthalmoplegia on the left, and visual acuity disturbance [ajnr.org]

Sinusitis

Nosocomial bacterial rhinosinusitis is an acute sinusitis that can affect patients in intensive care units (ICUs), typically presenting as fever of unknown origin. [cancertherapyadvisor.com]

Hospital-acquired sinusitis is a common cause of fever of unknown origin in orotracheally intubated critically ill patients. Crit Care 2005 ;9: R583 –R590. [atsjournals.org]

Tuberculosis

BACKGROUND: Tuberculosis (TB), especially extrapulmonary tuberculosis (EPTB), is an important cause of fever of unknown origin (FUO) in TB-burdened areas. [ncbi.nlm.nih.gov]

[…] of unknown origin Tubo-ovarian abscess Post-menopausal Nonagenarian Chronic kidney disease Case report [bmcwomenshealth.biomedcentral.com]

"Fever in Children and Fever of Unknown Origin". Indian journal of pediatrics. 83 (1): 38–43. doi:10.1007/s12098-015-1724-4. PMID 25724501. ^ "Fever". [en.wikipedia.org]

Tularemia

[…] of unknown origin had had exposure to F. tularensis. [accutixdx.com]

AIDS patients and patients with fevers of unknown origin are often diagnosed and treated by these subspecialists. [medicinenet.com]

[…] of unknown origin) with general, unspecific symptoms. [journals.lww.com]

Histoplasmosis

Histoplasmosis should be a differential diagnosis in a patient presenting with adrenal enlargement, lymphadenopathy, oral ulcers and fever of unknown origin in this region [ncbi.nlm.nih.gov]

Histoplasmosis should be suspected in patients with fever of unknown origin who reside in or have visited endemic areas, as a manifestation of progressive disseminated disease [infectiousdiseaseadvisor.com]

Systemic Lupus Erythematosus

In the event of fever of unknown origin in patients with constitutional SHOC2 pathogenic variant, SLE should be suspected. [ncbi.nlm.nih.gov]

This FDG distribution pattern should be kept in mind when PET is performed for etiological investigation of fever of unknown origin. [ncbi.nlm.nih.gov]

Cytomegalovirus

[…] of unknown origin who was referred to a tertiary hospital.19 Her liver enzyme levels were elevated, and an abdominal CT scan was consistent with acute hepatitis. [mja.com.au]

Primary CMV infection may be a cause of fever of unknown origin. Symptoms, when apparent, develop 9-60 days after primary infection. Pharyngitis may be present. [emedicine.medscape.com]

[…] a differential diagnosis, even in patients without severe immunosuppression.14 Yu and colleagues published a case report of a 39-year-old woman with a 6-week history of fever [mja.com.au]

Leukemia

A fever of unknown origin is defined as a fever of greater than 101 degrees that occurs frequently or lasts for more than three weeks with no obvious explanation. [verywellhealth.com]

[…] of unknown origin [FUO]). [doi.org]

Unexplained Fevers Fevers without an obvious source, such as infection, can be a symptom of any cancer, but especially blood-related cancers such as leukemia. [verywellhealth.com]

Lyme Disease

A 61-year-old Caucasian man presented with a fever of unknown origin, a transient erythematous rash on his right upper extremity and chest pressure after being treated for [ncbi.nlm.nih.gov]

Behçet Disease

Other manifestations included Stevens-Johnson-like eruption, fever of unknown origin, and testicular involvement. [pediatrics.aappublications.org]

SEP 2000; 12 (5) : 410-414 Majeed-HA Differential diagnosis of fever of unknown origin in children CURRENT-OPINION-IN-RHEUMATOLOGY. [malattierare.regione.veneto.it]

Oral ulcers and fever of unknown origin are frequent at onset and difficult to distinguish from other inflammatory disorders; therefore, expert opinion is still mandatory [ped-rheum.biomedcentral.com]

Acquired Immunodeficiency Syndrome

The postoperative course was eventful, with persistent high fever of unknown origin after surgery and infiltrative shadows in the bilateral lung fields showing on CT scan. [ncbi.nlm.nih.gov]

The pulmonary pattern, the central nervous system pattern, the gastrointestinal pattern, and the pattern of fever of unknown origin. [kpv.arso.gov.si]

[…] or soaking night sweats of unknown origin a marked change in an illness pattern, either in frequency, severity, or length of sickness appearance of one or more purple spots [healthcentral.com]

Hodgkin Lymphoma

Fever(>38^C) • May first present as fever of unknown origin • Fever persists for days to weeks followed by afebrile intervals and then recurrence. • This pattern is called [slideshare.net]

Melioidosis

Given the high mortality of neonatal melioidosis, particular attention must be paid when the caretakers of the newborn develop fever of unknown origin in a melioidosis-endemic [ncbi.nlm.nih.gov]

[…] of unknown origin, abdominal pain or discomfort. [doi.org]

[…] of splenic abscesses alone is suggestive of melioidosis, especially in those with comorbid diseases or in patients living or travelling in endemic areas who present with fever [doi.org]

Ectodermal Dysplasia

/fevers of unknown origin in infancy that can rarely lead to febrile seizures Tooth anomalies including hypodontia and conical teeth Sparse hair of the scalp, eyebrows and [clinicaladvisor.com]

The most common symptoms of XLHED are the following: Significant decrease in sweating or hypohidrosis that can lead to heat intolerance, hyperthermia, or unexplained fevers [clinicaladvisor.com]

Human Granulocytic Ehrlichiosis

Fever 54. Temperature Regulation and the Pathogenesis of Fever 55. Fever of Unknown Origin 56. The Acutely Ill Patient with Fever and Rash Section B. [euro-libris.ro]

Amebic Liver Abscess

Results: among the 45 patients with PLA (30 men and 15 women, with a mean age of 61 years and 11 months), more than a half were cholangitic (13 cases) or were of unknown origin [scielo.isciii.es]

Increased ESR (> 30), leukocytosis (> 12,000), fever and abdominal pain were observed in 95.5%, 86.7%, 82.8% and 68.9%, respectively. [scielo.isciii.es]

Urinary Tract Infection

A urinary tract infection is an infection of one or more structures of the urinary tract. Polyuria and dysuria are common symptoms. Population at increased risk People who have obstructed urinary tract conditions such as kidney-stone or with a history of having incomplete bladder emptying (spinal cord injury,[…] [symptoma.com]

Female Pelvic Inflammatory Disease

Abstract Pelvic inflammatory disease (PID) is a clinical syndrome of the female reproductive tract characterized by inflammation of the endometrium, fallopian tubes, or peritoneum (1). PID occurs when microorganisms ascend from the vagina or cervix to the fallopian tubes and other upper genital tract structures (1).[…] [ncbi.nlm.nih.gov]

Toxoplasmosis

Toxoplasmosis is an acute or chronic, widespread disease of animals and humans caused by Toxoplasma gondii. It has a number of effects, depending on the immune competence of the individual infected, and the timing of infection. Links: Toxoplasma gondii clinical features investigation treatment of toxoplasmosis advice[…] [gpnotebook.co.uk]

Hyperthyroidism

What Is Hyperthyroidism? Hyperthyroidism is a medical condition that results from an excess of thyroid hormone in the blood. Thyroid hormones control most metabolic processes in the body. In cases of hyperthyroidism, these processes are often sped up causing symptoms of hyperthyroidism, which will be discussed[…] [onhealth.com]

Pancreatitis

The clinical term “Pancreatitis” refers to the acute and chronic inflammation of the pancreatic gland as a result of its enzymatic autodigestion. Pancreatitis is one of the leading cause of gastrointestinal mortality and morbidity among hospitalized patients. Patients suffering from acute or chronic pancreatitis may[…] [symptoma.com]

Salmonella Infection

Acute gastric dilatation is a potentially life-threatening entity that has been reported in patients with some acute infections like pneumonia and staphylococcal bacteremia. We describe a case of acute gastric dilatation presenting atypically in a 65-year-old diabetic with Salmonella diarrhoea. By the fourth day of[…] [ncbi.nlm.nih.gov]