Subtle signs of breast cancer as an important pitfall in mammographic interpretation: Establishing an accurate diagnosis in an equivocal case.

Mammogram is the standard imaging modality for the early detection of breast cancer, and it has been shown to reduce disease-related mortality by up to 30%. Mammogram, however, has its limitations. It is reported that 10-30% of breast cancers may be missed on a mammogram.

Chronic bacterial and parasitic infections and cancer: a review.

Background: A relatively underestimated facet of infectious diseases is the association of chronic bacterial and parasitic infections with cancer development. Therefore, we sought to evaluate the evidence regarding the association of such infections with the development of malignancy, excluding the overwhelming evidence of the association of Helicobacter pylori and cancer.

Methodology: We searched Pubmed, Cochrane, and Scopus without time limits for relevant articles.

Resiniferatoxin in the treatment of interstitial cystitis: a systematic review.

Resiniferatoxin, a treatment based on a physiopathological concept (the involvement of C fibers and transient receptor potential vanilloid 1 in the transmission of pain) is undergoing evaluation for interstitial cystitis. We evaluated the current evidence from relevant studies identified in PubMed and Scopus databases. Six studies provided contradictory results regarding the effectiveness of resiniferatoxin treatment.

Matching criteria in case-control studies in the field of antimicrobial resistance.

Objective: We evaluated the available evidence from case-control studies in the field of antimicrobial resistance to identify the degree that matching was performed and the criteria used to do so.

Methods: We performed a systematic search of the PubMed database (articles archived by 08/2006) to identify relevant studies. Studies that used the individual matching technique were further analyzed.

Severe cytomegalovirus infection in apparently immunocompetent patients: a systematic review.

Background: The morbidity and mortality associated with cytomegalovirus (CMV) infection in immunocompromised patients (especially in HIV-infected patients and transplant recipients), as well as with congenital CMV infection are well known. In contrast, relatively little attention has been paid to the morbidity and mortality that CMV infection may cause in immunocompetent patients.

Methods: We reviewed the evidence associated with severe manifestations of CMV infection in apparently immunocompetent patients and the potential role of antiviral treatment for these infections.