A case of Clostridium difficile bacteremia in a patient with loop ileostomy.

Clostridium difficile, an anaerobic, spore-forming, gram-positive, rod-shaped bacterium, is the most common nosocomial pathogen causing pseudomembranous colitis. C. difficile is not intrinsically invasive and rarely infects extraintestinal sites.

Prognostic value of Waldeyer's ring involvement of diffuse large B-cell lymphoma treated with R-CHOP.

The objective of present study was to compare the prognosis of diffuse large B-cell lymphoma (DLBCL) with Waldeyer's ring involvement (WR-DLBCL) to that of nodal DLBCL (N-DLBCL) without WR involvement. Between July 2004 and October 2009, medical records and metabolic tumor volume (MTV) measured by 2-[fluorine-18]-fluoro-2-deoxy-D-glucose ((18)F-FDG) positron emission tomography /computed tomography were collected from patients confirmed with DLBCL. All patients received six or eight cycles of R-CHOP therapy.

Prognostic value of metabolic tumor volume on PET / CT in primary gastrointestinal diffuse large B cell lymphoma.

Primary gastrointestinal (PGI) diffuse large B cell lymphoma (DLBCL) is a relatively common disease. Recent studies indicate that measurement of maximum standardized uptake value (SUV(max)) on pretreatment for (18)F-fluorodeoxyglucose PET is an important prognostic factor in PGI DLBCL. However, there is still an association between initial tumor burden and prognosis.

Clinical significance of metabolic tumor volume by PET/CT in stages II and III of diffuse large B cell lymphoma without extranodal site involvement.

The objective of this study was to investigate whether metabolic tumor volume (MTV) by positron emission tomography (PET) can be a potential prognostic tool when compared with Ann Arbor stage, in stages II and III nodal diffuse large B cell lymphoma (DLBCL). We evaluated 169 patients with nodal stages II and III DLBCL who underwent measurements with PET prior to rituximab combined with cyclophosphamide, adriamycin, vincristine, and prednisone (R-CHOP). Cutoff point of MTV was measured using the receiver operating characteristic (ROC) curve.