Notes from NEET topper
Cancer Detection & Diagnosis:
Cancer is a complex group of diseases characterized by uncontrolled cell growth and proliferation. Early detection of cancer is crucial for effective treatment and improved patient outcomes. A range of diagnostic tools and techniques are available to identify and diagnose cancer. These include various imaging modalities such as X-rays, CT scans, MRI, and ultrasound, which help visualize tumors and assess their size and location. Laboratory tests, such as blood tests and tumor markers, can provide valuable information about cancerous conditions. However, one of the most definitive methods for diagnosing cancer is a biopsy, which involves the removal of a tissue sample for microscopic examination. Biopsies can be obtained through various methods, including fine-needle aspiration, core needle biopsy, and surgical excision. Tissue examination allows pathologists to determine the type of cancer, its stage, and its aggressiveness, aiding in treatment planning and prognosis.
