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Biopsy techniques

45 articles

Soft tissue biopsy

A soft tissue biopsy is a diagnostic procedure that removes a sample of muscle, fat, or connective tissue for microscopic examination to identify disease, especially tumors.

Synovial biopsy

Synovial biopsy is a diagnostic procedure that removes a small sample of the synovium, a joint's lining membrane, when fluid analysis and imaging cannot identify the cause of joint inflammation.

Systematic prostate biopsy

Systematic prostate biopsy is a diagnostic procedure that samples the prostate with a needle at fixed, standardized locations, usually under ultrasound guidance, to detect cancer.

Targeted biopsy

Targeted biopsy, also known as MRI-targeted or targeted prostate biopsy, uses MRI to guide needle sampling of suspicious prostate lesions, finding more clinically significant cancer than systematic biopsy.

Temporal artery biopsy

Temporal artery biopsy is a minor procedure removing a segment of the temporal artery under local anesthesia to confirm giant cell arteritis, the traditional gold-standard test.

Testis biopsy

Testis biopsy is a surgical diagnostic procedure in which a small sample of testicular tissue is removed and examined under the microscope to assess sperm production, most often in evaluating male infertility.

Transperineal biopsy

Transperineal biopsy, also called transperineal prostate biopsy, is a prostate biopsy technique in which the needle enters through the perineum, avoiding rectal bacteria and reducing sepsis risk.

Transrectal ultrasound-guided biopsy

Transrectal ultrasound-guided (TRUS) biopsy is a diagnostic procedure that uses spring-loaded needles to sample prostate cores through the rectum, typically taking 10 to 12 cores.

Transthoracic needle biopsy

Transthoracic needle biopsy is a percutaneous procedure in which a needle is inserted through the chest wall, usually under imaging guidance, to sample lung or mediastinal lesions for diagnosis.

Tru-cut biopsy

Tru-cut biopsy is a core needle biopsy technique in which a side-notch cutting needle, advanced manually or spring-loaded, removes a half-cylindrical tissue core for diagnosis.

Ultrasound-guided biopsy

Ultrasound-guided biopsy is a percutaneous procedure in which real-time sonography directs a needle into a suspected lesion to obtain cells or tissue for diagnosis, best suited to superficial targets.

Vacuum-assisted biopsy

Vacuum-assisted biopsy, also known as vacuum-assisted breast biopsy, is a minimally invasive breast biopsy method in which vacuum suction draws tissue into the needle for multiple larger samples through one insertion.

Vaginal biopsy

A vaginal biopsy is a procedure that removes a small tissue sample from the vaginal wall for microscopic examination, the gold standard for diagnosing vaginal precancerous lesions and cancer.

Wedge biopsy

A wedge biopsy is a surgical technique that removes a wedge-shaped piece of liver or lung tissue for diagnosis, usually during open surgery, laparoscopy, or VATS.

Wide area transepithelial sampling

Wide area transepithelial sampling (WATS) is an endoscopic brushing method, aided by computer-assisted 3D analysis, that detects Barrett's esophagus and dysplasia as an adjunct to forceps biopsy.