Doctor insights on:
Are All Gliomas Malignant
Not at all: There are numerous types of brain tumors, and some are benign, others are malignant. You need to know exactly what kind of tumor it is to assess likelihood of it being 'fatal.' Even if malignant, tumors can be treated and patients can survive for a period of time. Some brain tumors (meningioma, pituitary Adenomas) are usually quite benign and treatable. ...Read moreSee 2 more doctor answers
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
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
No: Small tumors can be malignant, and tend to grow and spread if left untreated. Benign tumors can also grow, and somtimes get big because of lack of symptoms. Only way to tell benign from malignant is to look at cells under microscope. ...Read more
For colon cancer,Peritoneal Carcinoma's, roughly what percentage of those malignant tumors are cancerous.I read malignant tumors are 100% cancer.
Thyroid nodules: No, most thyroid nodules are not cancerous. A thyroid ultrasound is very sensitive at picking up tiny and often insignificant nodules. There are some features of thyroid nodules that make them more suspicious, such as large solitary "cold" ones, and other features. The best person to evaluate is an Endocrinologist who does his/her own U/S guided biopsies. ...Read moreSee 1 more doctor answer
Cystic astrocytoma: Not all cystic astrocytomas are malignant. Being cystic does not make the tumor malignant, there are other findings in the tumor that need to be present to declare the tumor malignant. ...Read more
Many Types: There are more than three types of malignant tumors. A cell from any organ (liver, skin, lung, brain, blood, breast, ovary, etc) may proliferate without regulation and produce a malignant tumor. ...Read more
I would say not: Hi. No, I would say pituitary tumors aren't neuroendocrine (NE) tumors (nor are craniopharyngeomas). Generally the term "neuroendocrine" refers to nerve cells that secrete hormones. Examples would be hypothalamic neurons regulating the anterior pituitary, cells of the posterior pituitary, the adrenal medulla. A classic NE tumor is a carcinoid tumor; there are many examples, but not pit. adenomas. ...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
Not CA, can get big: Cancers (malignant) tumors lose normal control with other cells, have unrestricted growth; they can enlarge, spread by blood or lymph. Can be fatal. Benign tumors are abnormal, but not cancers. Can get big, but don't spread by blood or lymph. Generally not fatal, although benign brain tumors can cause a lot of trouble-not much room to spare in the skull. ...Read moreSee 1 more doctor answer