Final Lecture Flashcards
Tumors
a mass of cells whose growth is uncontrolled and that serves no useful function
Can be malignant (cancerous) or benign –> Depends on whether the tumor is encapsulated
Who is benign and malignant most common in
Benign more common in women; malignant more
common in men
Tumors damage brain tissue by
- Compression
- Infiltration
- Malignant can compress and infiltrate
- Benign tend to only compress
Primary and secondary brain tumors
Primary = start in CNS, Most commonly seen in those under 15 and above 65 y/o
- Secondary = Metastasize to brain, fMost common brain metastases are from lung and
breast cancer.
Grading of CNS Tumors: grade 1 and grade 4
Grade 1:
* low proliferative potential
* possibility of cure after surgical resection
Grade 2:
* histological evidence of malignancy
* mitotically active
* prone to necrosis
* associate with rapid preoperative and postoperative disease progression and fatal outcomes