: CT-Guided Fine Needle Aspiration of Pelvis

: What Is a CT-Guided Pelvic FNA?

: This procedure combines computed tomography (CT) scanning with fine needle aspiration. CT images provide a detailed cross-sectional view of the pelvis, allowing the physician to see the exact location and depth of a mass or abnormal tissue. A very thin needle is then guided into the target area to withdraw a small sample of cells. Because the needle is fine, the procedure is less invasive than surgical biopsy and usually does not require general anesthesia.

: Why Is This Test Ordered?

: Your doctor may recommend a CT-guided pelvic FNA when imaging studies reveal a mass, cyst, or other abnormality in the pelvic region that needs further evaluation. It is commonly used to investigate suspected tumors, enlarged lymph nodes, or unexplained pelvic lesions. The sample collected helps pathologists determine the nature of the tissue—whether it is benign, infectious, inflammatory, or cancerous—which guides treatment decisions.

: How Is the Procedure Performed?

: You will typically lie on a CT table, and a technologist will take images to locate the target precisely. The skin over the area is cleaned and numbed with a local anesthetic. Using CT guidance, the physician advances a fine needle into the lesion and aspirates (draws out) cells. Several passes may be made to ensure an adequate sample. The entire procedure usually takes less than an hour, and most patients go home the same day.

: How Should I Prepare and What Can I Expect?

: Preparation instructions vary by institution. You may be asked to avoid eating or drinking for several hours before the procedure and to inform your care team of any medications—especially blood thinners—or allergies. Some patients receive light sedation. Afterward, you may experience mild soreness at the needle site. Your care team will monitor you briefly for any complications before discharge and will explain when to expect results.