Frozen sections are diagnosed by the pathologist while a patient is undergoing surgery, often under general anesthesia, for the purpose of rapid diagnosis which may be used to make immediate treatment decisions or to confirm that diagnostic tissues have been sampled for further study. As a result, frozen section diagnosis is often a highly demanding situation for the pathologist who must render a diagnosis quickly and is a basis for critical decisions to the surgeon. In addition to the need for rapid recall of differential diagnoses, there are many pitfalls and artifacts that add to the risk of frozen section diagnosis that are not present with permanent sections of fully processed tissues that can be examined in a more leisurely fashion. Most standard pathology textbooks, both general and subspecialty, largely ignore the topic of frozen section. Marca: SPRINGER VERLAG IBERICA