Doctor insights on:
What Percentage Of Ependymoma Brain Tumors Are Benign
0%: All ependymoma brain tumors are technically malignant, meaning the cells are cancer and can grow into the surrounding brain tissue. However, most of these tumors (over 90%) are curable because the tumor is confined to one area, is slow-growing, and can be removed by surgery. Sometimes radiation alone is used for slow-growing brain ependymomas if surgery can't be performed. ...Read moreSee 1 more doctor answer
Many: Brain tumors, benign or malignant, can have many different presentations. These include headache, seizures, focal neurological deficits such as speech problems, weakness in one limb or on one side, difficulty thinking properly etc. These symptoms are all non-specific, and can also be due to other brain disorders. ...Read more
Uncommon: Brain Tumors affect over 10,000 people in the US each year, so they are not all that rare. The symptoms typically consisit of persistent Headaches which are new in onset and get progressively more severe over one or two months. Visual changes, sizures and loss of control of an arm or leg can also be the presenting symptoms. If there is strong suspicion it is easy to confirm with a CT or MRI scan ...Read more
For colon cancer,Peritoneal Carcinoma's, roughly what percentage of those malignant tumors are cancerous.I read malignant tumors are 100% cancer.
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
Several: The most common types of brain tumors are actually from the spread of another cancer to the brain. After this the most common cerebral tumors are grade 4 tumors called glioblastoma or gbm. Of course there are other benign tumor that come from the coverings of the brain. Other tumors can come from the fluid cavities or pituitary gland and have varied degrees of aggressiveness. ...Read moreSee 2 more doctor answers
Meningiomas: A complex question as complications are related to location of the tumor, size of the tumor, and surgical accessibility - all of these queries should discussed with the surgeon considering the surgeon. ...Read more
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
Are nasal tumors rare in people in 30's, both benign and malignant? What are statistics of cancerous ones?
Yes: Nasal tumors are less common but may still occur in younger people. See a medical professional for an examination to determine the cause. Don't jump into statistics about malignancy before you know what is wrong. ...Read more
Depends: As the tumor grow in size, it will compress areas of brain that control movement, or it could cause headaches or visual symptoms. ...Read more
Depends on age: 49 year old female asks, What percentage of breast calcifications are benign? Depends on shape and character. On Mammogram Bigger calcium deposits, Macrocalcifications, that tend to be rounded dots & scattered about tend to be benign and occurs in about 50% of women >50years & in about 10% of those ...Read moreSee 1 more doctor answer
Tuberous sclerosis have a large percentage of which of the following tumors? 1-renal cell carcenoma 2-adenoma 3-angiomyolipoma 3-oncocytoma 4-sarcoma
Why is the term glioblastoma used to describe all brain tumors if not all brain tumors are composed of glial?
Not all brain tumors: ...are glioblastomas. Glioblastoma multiforme is a high grade astrocytoma (or glioma). Astrocytoma said can also be low or intermediate grade depending on how they look under the microscope and their pattern and rate of growth. There are other types of brain tumors, such as mesotheliomas, which are not glial tumors. ...Read more
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
Varied: General signs and symptoms include headaches; gastrointestinal symptoms such as nausea, loss of appetite, and vomiting; and changes in personality, mood, mental capacity, and concentration. Other clinical presentations of brain tumors include focal cerebral syndromes such as seizures. ...Read moreSee 1 more doctor answer
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