Understanding Cancer: Definition, Types, and Characteristics

What are the primary common cancers that can spread to the brain?

Breast cancer, colon cancer, kidney cancer, and lung cancer

How are other brain tumors described?

From the kinds of cells they are made of

Which type of brain tumor is linked to the meninges?

Meningiomas

What is the most common solid tumor in children and adolescents?

Brain tumors Signup and view all the answers

Which type of tumors account for the majority of primary brain tumors?

Anaplastic astrocytomas and glioblastomas Signup and view all the answers

How many new cases of brain and other CNS tumors were diagnosed worldwide in 2020?

308,102 cases Signup and view all the answers

What distinguishes a benign brain tumor from a malignant one?

Benign tumors grow slowly and have distinct borders. Signup and view all the answers

Which tumor type can still be dangerous even though it is benign?

Meningioma Signup and view all the answers

What does the '-oma' suffix usually denote?

Benign tumors and abnormal growths Signup and view all the answers

Which brain tumor type is most likely to originate in the brain itself?

Glioma Signup and view all the answers

What sets primary brain tumors apart from metastatic brain tumors?

Primary tumors start in the brain. Signup and view all the answers

Which term refers to malignant brain tumors?

Cancerous tumor Signup and view all the answers

What is the most common type of malignant brain tumor in adults?

Astrocytomas Signup and view all the answers

Which subtype of malignant brain tumor has the most aggressive behavior?

Glioblastoma multiforme Signup and view all the answers

What is the median overall survival for glioblastoma multiforme (GBM) patients?

12-16 months Signup and view all the answers

Which imaging technique is commonly used to diagnose brain tumors?

Contrast-enhanced magnetic resonance imaging (MRI) Signup and view all the answers

What are the common symptoms associated with brain tumors?

Headaches and vision changes Signup and view all the answers

What is the most common primary spinal tumor?

Schwannomas Signup and view all the answers

What is the primary characteristic of cancer cells?

They grow and divide uncontrollably Signup and view all the answers

Which of the following is NOT a potential cause of genetic changes that can lead to cancer?

Regular exercise and a healthy diet Signup and view all the answers

What is the process by which cancer cells spread to distant parts of the body?

Metastasis Signup and view all the answers

Which of the following statements about chronic inflammation is TRUE?

It can contribute to the development of cancer Signup and view all the answers

What is the primary difference between cancerous and non-cancerous tumors?

Cancerous tumors can invade nearby tissues and metastasize Signup and view all the answers

According to the information provided, what type of cells can acquire genetic changes that lead to cancer?

The information is unclear about the cell type Signup and view all the answers

What is the primary purpose of a biopsy in the diagnosis of brain tumors?

To identify an area of tissue with sufficient tumor for detection Signup and view all the answers

Which of the following tests is NOT mentioned as a method to confirm the diagnosis if a biopsy is not possible?

Magnetic Resonance Imaging (MRI) Signup and view all the answers

What does the World Health Organization (WHO) tumor grading system for brain tumors range from?

1 (least aggressive) to 4 (most aggressive) Signup and view all the answers

Which of the following treatment options is NOT mentioned in the text for brain tumors?

Stem cell therapy Signup and view all the answers

What is the purpose of a genomic DNA extraction from a blood or bone marrow specimen?

To capture and sequence the exons 4 and 5 of the IDH1 gene Signup and view all the answers

Which of the following statements is true regarding the grading of brain tumors, according to the text?

The grade of a brain tumor defines how serious it is Signup and view all the answers