Solitary fibrous tumour of prostate: evaluation and management of a rare tumour

Solitary fibrous tumours, which are commonly described as arising from the pleura, are rarely seen in the lower urinary tract. Although malignant changes have been reported, these tumours are usually benign. This case report discusses the radiological features, management strategy and histopathology of a solitary fibrous tumour arising from the prostate.     

Multiple sublineages of influenza A virus (H5N1), Vietnam, 2005-2007

Phylogenetic analysis of influenza subtype H5N1 viruses isolated from Vietnam during 2005-2007 shows that multiple sublineages are present in Vietnam. Clade 2.3.4 viruses have replaced clade 1 viruses in northern Vietnam, and clade 1 viruses have been detected in southern Vietnam. Reassortment between these 2 sublineages has also occurred.     

Cardiac sarcoidosis

Sarcoidosis is a systemic disease with a favorable prognosis, high remission rate, and low mortality. Cardiac involvement alters this prognosis. Clinical manifestations most commonly include arrhythmias, conduction abnormalities, and congestive heart failure. Treatment includes immunosuppressant therapy, permanent pacemakers in the setting of conduction abnormalities, and implantable cardioverter-defibrillators in patients at risk for sudden cardiac death. Risk stratification for sudden cardiac death is essential in otherwise asymptomatic patients who have suspected cardiac sarcoidosis.