Imaging and pathological features of primary malignant rhabdoid tumours of the brain and spine

In this article two cases of primary malignant extrarenal rhabdoid tumour are described. In the affected children the brain and the spinal cord were the primary sites of origin of the tumour. The imaging findings are presented and the pathology discussed. Although the imaging features are non-specific, rhabdoid tumour should be included in the differential diagnosis of childhood intracranial and spinal neoplasms.     

Development of a lower confidence limit for the number of signals

We propose a multistep procedure for constructing a lower confidence limit for computing the number of signals present in a vector measurement. We derive the probability of correct estimation P(CE) and the least favorable configuration (LFC) for our procedure. Under the LFC, P(CE) attains its minimum over the parameter space of all eigenvalues. Therefore, to implement our technique, procedure parameters are determined for the LFC for each sample size n so that the probability requirement is reached.     

Ectrodactyly-ectodermal dysplasia-clefting (EEC) syndrome: dominant inheritance and variable expression

The influence of thymosterin on immunological reactivity of NZB mice was investigated. Thymosterin was administered three times per week for a period of six weeks to male and female NZB mice. Only lymphocytes from untreated female mice gave the positive results in the macrophage migration inhibition test using native DNA as the stimulating antigen. This effect was suppressed in thymosterin treated females. The administration of thymosterin therefore appears to correct the in vitro delayed hypersensitivity to DNA antigen.     

The effect of body fluids on polynucleotide-induced fibroblast interferon and virus-induced leukocyte interferon

Micalite (microcapsulated lithium carbonate with a retarded action) was used for the treatment of manic states and the prevention of attacks of manic-depressive psychosis in 40 patients. The preparation was administered once daily. This provided the necessary concentration of lithium in the blood on a stable level. According to its therapeutical effectiveness and the frequency of side-effects micalite does not differ from other lithium preparations with a simgle daily administration of micalite there are much less distubrances in the treament regime.