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Waldeyer-Hartz, Wilhelm

cancer body cell spread

[ vahl diyer harts] (1836–1921) German medical scientist: gave the first modern description of cancer.

After studying science and mathematics, Waldeyer (as he was usually known) graduated in medicine at Berlin and later taught physiology and anatomy at three universities; he moved to Berlin in 1883 and soon made his institute famous. He first used haematoxylin as a histological stain; he introduced the name ‘chromosome’ for the rods seen in cell nuclei, which are readily stained; and he coined the name ‘neuron’ in neurology. His anatomical work included a description of the lymphoid tissue of the throat (the faucial and pharyngeal tonsils), known as Waldeyer’s ring.

In 1863 he gave an account of the genesis and spread of cancer in essentially modern terms. He classified the types of cancer and concluded that cancer begins in a single cell and may spread to other parts of the body by cells migrating from the original site through the blood or lymphatic system (metastasis). This implied that removal of the initial cancerous cells at an early stage could effect a cure, in contrast with the view that cancer was a generalized attack on the body and that treatment was useless. This approach to oncology (the study of tumours in the animal body) became of great value when radiotherapy and later chemotherapy were available as well as surgery in the treatment of cancerous growths.

Walgreen, Charles - Overview, Personal Life, Career Details, Social and Economic Impact, Chronology: Charles Walgreen [next] [back] Walcott, Charles (Doolittle)

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almost 7 years ago

large amount of flouds of blood and water in stomach and cancer in pinkiriyas