Correlations between cognitive, behavioural and psychological findings and levels of vitamin B12 and folate in patients with dementia.

Background: Associations between low levels of folate and vitamin B12 and cognitive impairment in patients with dementia have been reported. Some studies revealed correlations between low levels of vitamin B12 and behavioural and psychological signs and symptoms of dementia (BPSD) in Alzheimer's disease (AD) patients. Given the lack of studies in frontotemporal dementia (FTD) and on folate and given the methodological shortcomings of former publications, we set up a prospective study.

Sarcoidosis and sarcoid-like reaction following Hodgkin's disease. Report of two cases.

The occurrence of a sarcoidosis associated with Hodgkin's disease is an infrequent but well-described event. Moreover it has been described for many decades that some malignancies may present with simultaneous granulomatous manifestations named sarcoid-like reactions. To differentiate sarcoidosis from the sarcoid-like reactions is not an easy step in the final diagnosis.

Imaging of large vessel vasculitis with (18)FDG PET: illusion or reality? A critical review of the literature data.

Fluorine-18 fluorodeoxyglucose positron emission tomography ((18)FDG PET) plays a major role in the management of oncology patients. Owing to the singular properties of the glucose tracer, many patients suffering from non-malignant diseases such as inflammatory or infectious diseases may also derive clinical benefit from the appropriate use of metabolic imaging. Large vessel vasculitides such as giant cell arteritis and Takayasu arteritis are other examples that may potentially extend the field of (18)FDG PET indications.