Doctor insights on:
Malignant Neoplasm Of Colon
For colon cancer,Peritoneal Carcinoma's, roughly what percentage of those malignant tumors are cancerous.I read malignant tumors are 100% cancer.
Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more
Are carcinoid tumors carcinoma? Is malignant metastatic stomach carcinoma that's hereditary a carcinoid cancer? carcinoid Neuroendocrine tumors?
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
Subtype of colon Ca: Mucin producing metastatic adenoca of the colon is derived from a primary adenoCa of colon producing large amounts of extracelluar mucin with greater than a 50% mucinous component.. The proximal colon and appendix represents 10-20% of these colorectal neoplasms . The rt. colon is the usual source for most of these lesions presenting with more advanced forms of disease than other colonic sites. ...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
Colon surgery:tumor size=2cm.Pathologic staging(pt3, n1b, mx).2/17 lymph nodes show metastatic.Margins of resection free of carcinoma.Need chemotherapy?
Yes: Chemotherapy regimens based on the drug Fluorouracil (5-fu) have been part of the treatment for high-risk stage ii or stage iii colon cancer. Many clinical trials have shown that these regimens improve overall survival primarily by reducing the high risk of recurrence within the first two years after surgery. ...Read more
Tuberous sclerosis have a large percentage of which of the following tumors? 1-renal cell carcenoma 2-adenoma 3-angiomyolipoma 3-oncocytoma 4-sarcoma
Disordered growth: Benign tumors grow locally and do not spread. Under the microscope, the cells look like the gland they are from and they are not invading. Cancer cells have disordered growth, frequently do not look like the originating gland and show invasion. ...Read moreSee 1 more doctor answer
Low but not zero: Stage ii colon cancer means no lymph node involvement by definition, but inadequate lymph node sampling (surgical resection) may "understage" the cancer, so make sure enough ln were taken -minimum of 12! even with appropriate surgery, mets may still occur, although very unusual, so discuss with your treating docs. A pet/ct may give some reassurance so ask if this can be done. ...Read moreSee 1 more doctor answer
Colon biopsy:huge tubulovillous adenoma with marked atypia, multi foci adenocarcinoma in situ &one tiny focus suggestive of micro invasion.Is it cancer?
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
Details matter: Many lung nodules are benign. This will depend on were you live. Lung nodules can be granulomas, infections, fungal infections, benign growths such as hamartomas, and finally cancerous. It is important to have either serial imaging or a biopsy if a lung nodule is found. There are currently guidelines for this that a pulmonary medicine specialist or thoracic surgeon should follow. ...Read moreSee 1 more doctor answer
Neither: Acrochordons are a fancy name for skin tags, which are benign (not cancerous) growths that tend to occur as we age. They can often be found on the neck, armpits, and groin-- pretty much anywhere where the skin tends to rub. No one knows what causes them, but they are definitely not dangerous. Many things can look like skin tags though, so best to see your dermatologist to check them out. ...Read moreSee 1 more doctor answer
"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
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