Doctor insights on:
Benign Tumor In Colon
Small and about 5%: Other than for congenital polyposis the majority of lesions arise in a field effect initiated by the polyoma virus. Contrary to the belief that adenomatous polyps convert to malignant polyps and then Ca this occurs in about 5 % of pts. 95% arise from premalignant cells in the viral or carcinogen field. ...Read more
"tumor" literally translates as "mass", so even a fresh bruise could be called a "tumor". Doctors use the term "neoplasm" (tranlates literally as new growth) to describe tumors that are abnormal growths of cells. These may be benign or malignant; "malignant" = cancer. In everyday usage, we use "tumor" ...Read more
No.: By definition, a benign tumor does not metastasize (spread to other sites by invading the blood stream or lymphatic system). Extremely rare cases of 'parasitic' or implanted benign tumors (eg leiomyomas of the uterus) are recognized to occur in sites outside their normal origin, but this is thought to be a result of some form of tissue transplantation, and not true tumor ''metastasis' ...Read more
Are carcinoid tumors carcinoma? Is malignant metastatic stomach carcinoma that's hereditary a carcinoid cancer? carcinoid Neuroendocrine tumors?
No: Benign lung nodules are not rare and are found during routine chest x-rays or, more likely ct scans. The most common are hamartomas or adenomas that are totally innocent if they are in the outer lung as usual but can block a lung if they are in one of the bronchial tubes. Although, pet scans can help determine that these are benign, some require surgical removal to assure that they are benign. ...Read more
For colon cancer,Peritoneal Carcinoma's, roughly what percentage of those malignant tumors are cancerous.I read malignant tumors are 100% cancer.
No: Fibroadenomas are the most common breast tumor. Excision is not necessary unless there are features that would suggest a rare variant of fibroadenomas, called phyllodes tumors. Despite this, some women will still opt for excision due to the size of the tumor and/or fear surrounding constantly feeling a lump in one's breast. If reassurance fails, the surgery itself is quite minimal. ...Read moreSee 1 more doctor answer
If both benign and malignant tumours are formed by abnormal cell division, what makes malignant tumours cancerous and benign tumours non-cancerous?
Power to invade: Tumors are in fact caused by the accumulation of a series of genetic mutations. If something is going to be cancer, the mutations destabilize the genome and eventually mutations give the ability of the cells to invade and spread as they do early after conception. The idea that tumors are "cells dividing too rapidly" is fundamentally wrong and confusing -- it's the loss of controls. ...Read more
Depends: A thymoma is a malignant tumor of the thymus, and the seriousness depends on details in the pathology report. An ectopic thymus and a hamartoma are both benign, but if the report says "thymoma" then it is probably malignant although not necessarily very serious if completely removed. Discuss with your surgeon! ...Read moreSee 1 more doctor answer
Benign tumors exist.: Lung cancer is the most common visceral cancer in the world today. Because of this, the presence of a mass lesion in the lungs is concerning. Importantly, not all lung tumors are malignant, and that is good news. The most common type of benign tumor is called a pulmonary hamartoma. These benign tumors account for about 10% of small solitary lung lesions identified by imaging studies. ...Read more
Fatty infiltration: Fatty infiltration is just what it sounds like - excess fat within and around the pancreas. This condition is benign (not harmful, not cancerous) in the sense that it does not disrupt the normal pancreatic functions of making hormones and making digestive enzymes, plus it does not increase the risk of pancreatic cancer. If a person has fatty infiltration due to obesity, he should lose some weight. ...Read more
Flat polyps: Sessile refers to the morphology of the polyp rather than the polyp type. Sessile polyps are more flat than peduculated polyps, which grow from a stalk. Once removed, the polyp is sent to pathology to determine the polyp type (hyperplastic, adenoma, cancer, etc). ...Read moreSee 3 more doctor answers
No ...: ... On the contrary. The smaller the polyp, the less likely it is to be "cancerous". Sessile just means flat (harder to find) versus pedunculated (mushroom-shaped). The precancerous type of polyps are adenomatous and serrated polyps (documented on pathology). Hyperplastic polyps in general are almost always benign and never turn into cancer. ...Read more
A tumor by any other name is a growth. It can be either benign or malignant, differentiated based upon the potential to spread (a malignant tumor is, by definition, a cancer). The best way to determine this is by a tissue biopsy, but we can make better predictions based on the organ of origin, physical ...Read more