Patterns of argyrophilic nucleolar organiser regions in pleural and peritoneal effusions.

Objective: To evaluate AgNOR size and dispersion as alternate methods to AgNOR counts in order to differentiate malignant from non-malignant effusions.

Design: Comparative study.

Place And Duration Of Study: Department of Pathology, Postgraduate Medical Institute, Lahore, from January 2003 to June 2004.