CT scan–guided biopsy is a minimally invasive procedure that uses computed tomography (CT) imaging to help guide a needle to a specific part of the body to collect a tissue sample for diagnosis. Here are the types of biopsy procedures commonly performed using CT guidance:
Types of CT-Guided Biopsies:
1. Lung Biopsy
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✅ To evaluate lung nodules, masses, or suspicious lesions.
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🧭 CT helps guide the needle through the chest wall into the lesion.
2. Liver Biopsy
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✅ To detect cirrhosis, tumors, infections, or fatty liver.
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🧭 CT guidance is useful in targeting focal liver lesions, especially deep ones.
3. Kidney Biopsy
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✅ To evaluate renal masses, tumors, or unexplained renal failure.
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🧭 Done via posterior or posterolateral approach.
4. Adrenal Gland Biopsy
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✅ For adrenal masses or metastasis.
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🧭 Often requires CT guidance due to small size and deep location.
5. Pancreatic Biopsy
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✅ For suspicious pancreatic masses (especially in head, body, or tail).
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🧭 Useful when endoscopic ultrasound biopsy is not feasible.
6. Abdominal Mass Biopsy
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✅ For retroperitoneal or intra-abdominal masses.
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🧭 CT provides exact location and avoids vital structures.
7. Bone Biopsy
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✅ To assess lytic or sclerotic lesions for infection or cancer.
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🧭 Especially useful in spine, pelvis, or ribs.
8. Lymph Node Biopsy
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✅ To evaluate enlarged lymph nodes in chest, abdomen, or pelvis.
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🧭 Deep-seated nodes not accessible by ultrasound can be biopsied with CT.
9. Pelvic Mass Biopsy
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✅ Ovarian or uterine masses, prostate lesions, or pelvic lymph nodes.
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| types of ct guided biopsy |
Common Biopsy Techniques (Needles Used):
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Core Needle Biopsy (CNB): Thick needle to obtain tissue core.
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Fine Needle Aspiration (FNA): Thin needle for cells and fluid.
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Vacuum-assisted Biopsy: Rarely used with CT, more common with MRI/US.
🧑⚕️ Why Use CT Guidance?
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Deep or small lesions not visible with ultrasound.
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Precise needle positioning.
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Avoids major blood vessels/organs.
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