Cytologic diagnosis by examination of exfoliated cells in serous cavity fluids is one of the most challenging areas in clinical cytopathology. Almost 20% of the effusions examined are directly or indirectly related to the presence of malignant disease, with carcinoma of the lung as the most common underlying culprit. This volume published in the Essentials in Cytopathology book series will fulfill the need for an easy-to-use and authoritative synopsis of site specific topics in cytopathology.

Syed Z. Ali, MD., is Associate Professor of Pathology and Radiology, Associate Director, Cytopathology, Director, Cytopathology Fellowship Program, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland.

Edmund S. Cibas, MD., is Associate Professor of Pathology,Harvard Medical School, Director of Cytopathology, Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts

Introduction, Clinical and Technical Aspects.- Normal Cytology.- Reactive Mesothelial Hyperplasia.- Malignant Mesothelioma.- Metastatic Cancers.- Effusions in Children.- Abdomino-pelvic Washings.- Lymphocytic Effusions.- Benign Inflammatory and Other Uncommon Conditions.