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Leopold Koss was an eyewitness to the events of World War II. As a medical student in Vienna, he witnessed the Anschluss and the triumphant arrival of German troops into the city. Later he lived through the German siege of Warsaw. In late 1940, he left his family in Poland and escaped across Nazi Germany, only to be beaten by the Gestapo, just yards from freedom. He joined the Free Polish Army in France and watched as France fell before the Nazi onslaught. After more harrowing experiences, he eventually made it to safety in Switzerland, where he finished his medical studies. When Dr. Koss arrived in the United States in 1947 with his wife and young son, he had a foreign medical degree that was not recognized in the United States, he spoke no English and he had only $20 in his pocket. Yet, he rose to the top ranks of the medical profession that honored him with almost every award in his field. His was a true immigrant success story.

The most influential and frequently cited pathology classic is now in its Fifth Edition, with thoroughly revised chapters and over 3,000 brand-new full-color illustrations. This two-volume work provides comprehensive, current information on the principles and techniques of cytopathology and the cytologic evaluation of benign and malignant disorders at every anatomic site. This edition provides greatly expanded coverage of the interpretation of aspirated cell samples. Innovations in the practice of cytopathology and data on molecular biology and cytogenetics have been incorporated into the orga.

This new volume fills the gap in the literature as it will guide urologists and pathologists in the proper utilization of a variety of laboratory methods that are currently available to determine the presence, persistence or progression of tumors of the lower urinary tract. The volume emphasizes cytology of the urinary tract which is preferred over other methods (i.e. biochemical, immunological and cytogenetic) for its accuracy, especially for the important high grade tumors. This volume will appeal to urologists as well as pathologists, cytopathologists and related professions. The illustrations, nearly all in color, stress the key points of the text and enhance basic understanding of urothelial and other tumors of the urinary tract.

This new volume fills the gap in the literature as it will guide urologists and pathologists in the proper utilization of a variety of laboratory methods that are currently available to determine the presence, persistence or progression of tumors of the lower urinary tract. The volume emphasizes cytology of the urinary tract which is preferred over other methods (i.e. biochemical, immunological and cytogenetic) for its accuracy, especially for the important high grade tumors. This volume will appeal to urologists as well as pathologists, cytopathologists and related professions. The illustrations, nearly all in color, stress the key points of the text and enhance basic understanding of urothelial and other tumors of the urinary tract.

This new volume fills the gap in the literature as it will guide urologists and pathologists in the proper utilization of a variety of laboratory methods that are currently available to determine the presence, persistence or progression of tumors of the lower urinary tract. The volume emphasizes cytology of the urinary tract which is preferred over other methods (i.e. biochemical, immunological and cytogenetic) for its accuracy, especially for the important high grade tumors. This volume will appeal to urologists as well as pathologists, cytopathologists and related professions. The illustrations, nearly all in color, stress the key points of the text and enhance basic understanding of urothelial and other tumors of the urinary tract.