Argyrophilic nucleolar organizer regions (AgNORs) were determined in 94 pleural, pericardial and peritoneal effusions. The results were correlated with cytologic diagnosis to determine the diagnostic potential of this technique. Cytologically the number of normal, reactive and malignant effusions were 32, 28 and 34 respectively. The mean AgNOR counts for normal, reactive and malignant spec...

Dermanura Gervais, 1856 is represented by small frugivorous bats of the Stenodermatinae subfamily. The taxonomy this group presents controversies and has been subject to changes, especially since morphological characters evaluated have left gaps that are difficult fill regarding good species characterization. Previous studies performed in cinerea found karyotype a diploid number chromosomes equ...

BACKGROUND In conventional cytological diagnosis of pleural effusions the assessment of morphological features plays an important part. However, false negative and false positive results may occur. In this study conventional cytology was compared with flow cytometric DNA analysis and the argyrophil staining technique for nucleolar organiser regions (AgNOR) to characterise benign and malignant e...

by Scoville and Milner (1957), the important role of the hippocampus in the formation of memory has been extensively documented. Until now, a vast majority of actual experimental work with animals and humans has been done considering the hippocampus as a homogeneous structure with a unified functional role (Eichenbaum et al., 1999; O’Keefe et al., 1998). However, numerous studies report the mor...

The histologic pattern of OKC is distinct and hence the cyst has potential for more aggressive behaviour than other cysts of the jaws. When inflammation is present within the cyst wall of an OKC, the character of the cyst lining changes from the classical pattern to a non-keratinized stratified squamous lining typical of other inflammatory cysts. This transformation often occurred quite abruptl...

AIM To evaluate the usefulness of counting nucleolar organiser region associated proteins (AgNORs) in the management of anal squamous neoplasia. METHOD Using a silver staining technique for NOR associated proteins, 32 routinely processed paraffin wax embedded sections of anal epithelium were assessed. These consisted of normal anal epithelium (n = 9), anal intraepithelial neoplasia (AIN) grad...