The majority of current texts on pulmonary pathology are based on the `whole picture` approach, that is, the presentation of the information as we have come to know it from the study of whole, resected lungs at surgery or at autopsy. In an era of increasingly non-invasive procedures and advanced and highly specific protocols for the treatment of malignancy and other diseases, it becomes imperative for pathologists to become conversant with the evaluation of disease processes of the lungs on very small and limited tissue samples. This volume in the series would be designed to fill in that gap and address that specific in detail.