What are the complications of percutaneous biopsy? Percutaneous needle biopsies are safe procedures, and the risk of serious complications is low. Complications can be stratified as minor and major complications. Major complications result in hospital admission for therapy, an unplanned increase in the level of care, prolonged hospitalization, permanent adverse sequelae, or death. Minor complications …
What are the indications for renal biopsy, and what is the best way to biopsy the kidney? Renal biopsy is a safe technique used to establish a diagnosis of focal renal lesions not characterized by diagnostic imaging or to assess nonfocal renal disease (nephropathy) or renal transplant rejection. With a high positive predictive value of …
What are the indications for liver biopsy, and what is the best way to biopsy the liver? Liver biopsy is used for diagnosis of liver masses and of diffuse acute or chronic liver disease. The liver can be biopsied with image guidance using US, CT, or endoscopic ultrasonography (EUS) via the gastrointestinal tract. The most …
How does one decide whether to use a percutaneous approach or a bronchoscopic approach to biopsy a lung nodule? Lung nodules and masses may be biopsied by bronchoscopy or by IPNB. Generally, lesions close to the hilum (central lesions) are accessed by bronchoscopy, whereas peripheral lesions are accessed percutaneously. With the new use of navigational …
What is the difference between the single needle technique and the coaxial needle technique of percutaneous biopsy? Biopsy procedures can be performed with a single-needle technique, using a fine needle for obtaining the sample. Alternatively, a coaxial needle technique can be used, whereby an introducer needle is placed in or near the lesion and through …
What is the difference between fine needle aspiration and core biopsy? Percutaneous needle biopsy includes two basic techniques for obtaining tissue samples: FNA and core biopsy. FNA refers to sampling using thin hollow needles (20 gauge [G] and smaller) that extract loose cells for cytologic evaluation. Core biopsy refers to the use of hollow needles …
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What patient preparation is necessary prior to percutaneous biopsy? Percutaneous biopsy requires special attention to coagulation indices. While there are varying opinions about the safe values of these indices, which may depend upon the particular target lesion and organ to be sampled along with local practices, the following parameters can serve as a general guide: …
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