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Oncology (Characteristics of Cancer (Carcinoma (This develops in…
Oncology
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Diagnosis of cancer
Imaging scans:
These help a doctor identify cancerous lesions in the body. Examples of imaging studies include a CT, ultrasound, or MRI scan
Imaging machines have different methods of creating images and may be more sensitive to certain types of cancer, such as cancers of the soft tissue or bones.
biopsy
this involves taking a sample of tissue from a potentially cancerous lesion and sending it to a laboratory. A pathologist who specializes in diagnostic techniques will then examine the cells for signs of cancer.
A biopsy sometimes involves using a needle to remove cells, but a doctor might use a surgical procedure in instances where a larger area requires examination.
Laboratory testing
Cancerous cells release compounds into the blood. A doctor may take samples of blood, urine, sputum, or other body fluids to check for these compounds
Lab tests are rarely a primary method for diagnosing cancer. However, they can be important for ruling out other conditions and confirming a diagnosis.
Physical exam
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During a physical exam, he or she may look for abnormalities, such as changes in skin color or enlargement of an organ, that may indicate the presence of cancer.