Urinary Cytology

Cytologic diagnosis of cancer has its roots in clinical micro­ scopy as it was shaped during the first half of the 19th century. In reviewing some of the early writing on this subject, one is amazed at the accuracy of the descriptions and soundness of the observations. Cytology of the urine is no exception: in 1864 Sanders described fragments of cancerous tissue in the urine of a patient with blad...