Ultrasound-Guided Core Biopsy
An ultrasound-guided core biopsy is a safe, minimally invasive procedure used to take a small sample of tissue for testing. Using ultrasound (sound wave imaging), the radiologist can clearly see the area of concern and guide the needle precisely to the right spot.
During the procedure, thin cylinders (“cores”) of tissue are taken. Usually, three samples are collected to provide enough tissue for an accurate result.
To keep you comfortable, local anaesthetic is always used to numb the area before the biopsy begins. Most people feel little to no pain, although you may notice some pressure during the procedure.
Compared with a fine needle aspiration (FNA), which collects individual cells, a core biopsy takes a larger sample of tissue. This gives more detailed information, allowing specialists to see how the cells are arranged and how they relate to each other. It also allows for additional testing, such as checking cell surface markers, which can be important for diagnosis and treatment planning.
The procedure is usually quick, and most patients can return to normal activities shortly afterwards. The tissue sample is sent to pathology for detailed analysis, and your referring doctor will discuss the results with you.

A gentle test to understand with care,
A biopsy guided by sound waves clear,
The radiologist, with skill and care,
Can see the target and approach it near.
With steady hand, a slender needle placed,
Draws tiny cores of tissue from the site,
Three samples taken, carefully and spaced,
To give the clearest answer with insight.
The area is numbed before the start,
With local anaesthetic for your ease,
Most feel but slight pressure, not discomfort,
As care is taken gently throughout these.
More than FNA, this sample shows the whole—
Cell shape, arrangement, markers—all its role.
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