discuss various historical theories and
Some believe that cancer is a modern disease in our time, but the fact that cancer is present thousands of years in the past. The oldest cancer circumstance in old Egypt was found in a written description of the cancer in the Egypt papyrus that the details had been referred to 8-10 cases of breast tumors dating back in between 1500-3000 BC. It was treated by simply cauterization which will destroyed tissues. The ancient surgical manuscripts describe the bleakly note, There is no treatment(2) only palliative treatment. It absolutely was believed that cancer was caused by the Gods.
In Ancient Greece, Hippocrates believed which the body was composed of 4 fluids 🙠blood, phlegm, yellow fiel, and black bile). It can be believed the presence excess of black haine in any internet site of the physique caused cancers. This was the overall thought of the main cause of cancer intended for the one particular, 400 years. Treatment was based on the humor theory of four actual fluid the procedure was comprised by diet plan, blood-letting, and / or laxatives. After it has been discovered that cancer can occur anywhere in our body, still Hippocrates theory of humor has always been popular and standard before the 19th hundred years with the discovery of cells. The first to realize the difference between benign and malignant tumors is Hippocrates, his writings describe malignancies of many sites of the physique. He called the disease karkinos (the Greek name pertaining to crab), and carcinoma, the Greek medical professional Galen applied oncos (Greek for swelling) to describe most tumours, arranging Hippocrates term carcinos pertaining to malignant tumors (1)
The discovery of general inconsiderateness in the mid-19th century together with the widespread use of microscopy in the 18th hundred years set off the golden age of surgical creativity, and in the 19th century the surgical removal of the tumor became the primary treatment of cancer. There are many of theories about other factors behind cancer throughout history, including: Infectious disease theory (Parasite theory) Till 18th century, scientists thought that cancer was transmittable and distributes through parasite Zacutus Lusitani (1575-1642) and Nicholas Tulp (1593-1674), 2 doctors in Holland, determined at almost the same time that cancer was contagious. They made this conclusion based on their experiences with breast cancer in members of the same household (3). They proposed that tumor patients should be isolated outside cities to avoid the pass on of cancers.
Humoral theory
Hippocrates believed which the body had 4 humors: blood, phlegm, yellow haine, and dark-colored bile. He is believed the presence excess of black fiel in any web page of the physique caused malignancy the person always be healthy If the humors will be balanced.
Lymph theory
This theory states that cancer is formed by a liquid called lymph. It is assumed that life consists of a continuous movement in the bodys essential fluids, such as lymph and bloodstream. Stahl and Hoffman theorized that tumor was made up of fermenting and degenerating lymph, varying in density, acid, and alkalinity(3). This lymphatic theory obtained rapid support and in the17 century the idea was supported that the tumors grows via lymph constantly thrown out by the blood.
Blastema theory
In 1838, demonstrated that cancers is made up of skin cells and not lymph, but this individual believed that cancer cells did not result from normal skin cells. His pupil, Rudolph Virchow (1821-1902), the popular German pathologist, determined that cells, which includes cancer cellular material, are based on other cells(3).
Long-term irritation theory the cause of malignancy was chronic irritation, although he believed the malignancies “spread like a liquid” which belief is usually incorrect.
Shock theory
Despite the improvement in understanding what causes cancer, there were a opinion that the reason behind cancer by trauma which belief can be incorrect.
