Bartonella henselae is associated with a wide spectrum of clinical manifestations, including cat scratch disease, endocarditis and meningoencephalitis, in immunocompetent and immunocompromised patients. We report the first molecularly confirmed case of B. henselae infection in an AIDS patient in state of Rio de Janeiro, Brazil. Although DNA sequence of B. henselae has been detected by polymeras...

Background and Purpose: Gastroenteritis and the clinical profile caused by Microsporidia, an opportunistic pathogen, may be severe in immunocompromised individuals, especially in AIDS patients. Conventionally, it is necessary to detect the small infective spores in stained smears. However, due to the limitations of the microscopy-based methods, several DNA-based methods such as polymerase cha...

In immunocompetent hosts, symptomatic cytomegalovirus (CMV) infection occurs in around 10% and has traditionally been considered to have a benign, self-limiting course. Active CMV infection in immunocompetent subjects is very rare. However, manifestations of CMV infection in immunocompromised hosts have been extensively reported. We present a case of a 58-year-old immunocompetent woman with a p...

Listeria monocytogenes (L. monocytogenes) is an uncommon cause of bacterial meningitis in immunocompetent adults. Patients with immunosuppression are at increased risk of developing serious invasive diseases, particularly meningitis. We describe a case of meningitis caused by L. monocytogenes in an immunocompetent and previously healthy 34-year-old adult. The patient received treatment with int...

Persistent neutrophilic meningitis presents a diagnostic challenge, because the differential diagnosis is broad and includes atypical infectious causes. We describe a case of persistent neutrophilic meningitis due to Aspergillus fumigatus in an immunocompetent man who had no evidence of sinopulmonary or cutaneous disease. An epidural glucocorticoid injection was identified as a potential route ...

Disseminated histoplasmosis affecting the adrenal gland(s) of immunocompetent adults is a very rare infection. Here, we present a case of bilateral adrenal histoplasmosis in an immunocompetent, 62-year-old gentleman from Texas along with a brief review of the published literature. Given the risk of patient decompensation secondary to adrenal insufficiency and the wide availability of effective ...

Cryptococcal meningitis is an opportunistic infection in immunosuppressed hosts with high morbidity and mortality. Once suffering from cryptococcal meningitis, immunocompetent patients are more likely to achieve poor outcome, because of the powerful immune response. Here we present a case of cryptococcal meningitis occurring in an immunocompetent host with no definite underlying diseases and no...

INTRODUCTION Cytomegalovirus generally causes self-limited, mild and asymptomatic infections in immunocompetent patients. An aggressive course in immunocompetent healthy patients is unusual. CASE PRESENTATION We report the case of an immunocompetent 16-year-old Egyptian boy with encephalitis, acute renal failure, and acute hepatitis triggered by viral infection with a complete recovery follow...

Cytomegalovirus colitis is uncommon in immunocompetent hosts. Thus, a case of bloody diarrhoea and weight loss in an immunocompetent elderly man is reported. Cytomegalovirus colitis was diagnosed by identifying inclusion bodies with positive immunohistochemistry for cytomegalovirus in the histological specimens obtained by colonoscopy. The patient responded to gancyclovir treatment. We conclude...

Recently, there has been an increase in the incidence of cryptococcosis even among immunocompetent patients. We present a case of multiple subcutaneous swellings later developing into a non-healing ulcer caused by Cryptococcus in a 60 year-old immunocompetent male along with a brief review of clinical presentations of cutaneous cryptococcosis in immunocompetent and immunocompromised individuals...