A case-control study to assess the role of polyomavirus in transplant complications: Where do we stand?

Purpose: The study's aim was to assess whether polyomavirus DNAemia screening was associated with different outcomes in patients with positive viremia compared with negative viremia.

Methods: Case-control retrospective study of patients with polyomavirus DNAemia (viremia > 1000 copies/mL) matched 1:1 with controls. Control group consists of the patient who received a transplant immediately before or after each identified case and did have nil viremia.

[Usefulness CT-guided F.N.A.C. in the diagnosis of mediastinal lesions].

Objective: To evaluate the diagnostic accuracy of the percutaneous fine needle aspiration cytology (FNAC) for mediastinal lesions by using histology or follow-up clinical diagnosis as gold standard.

Patients And Methods: CT-guided percutaneous FNAC was performed on 131 patients with mediastinal lesions. Helical CT was used with 3-10 mm image thickness range and low radiation dose (40 mAs, 120 kV).