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Needle-track metastasis after transthoracic needle biopsy
1Department of Radiology, University of Alabama at Birmingham, 35233-6830, USA.
Journal of Thoracic Imaging
|January 24, 1998
Summary
Metastasis along the needle track (NTM) is a rare complication following transthoracic needle biopsy (TNB). This study found the incidence of NTM to be approximately 0.012%, with no predictable risk factors identified.
Area of Science:
- Thoracic Radiology
- Interventional Pulmonology
- Oncologic Imaging
Background:
- Metastasis along the needle track (NTM) is a rare complication after transthoracic needle biopsy (TNB).
- Understanding its incidence, risk factors, and natural history is crucial for patient management.
- Previous estimates of NTM incidence and characteristics are limited.
Purpose of the Study:
- To assess the incidence of NTM after TNB.
- To identify potential predisposing factors for NTM.
- To describe the natural history and outcomes of patients with NTM.
Main Methods:
- A survey of Society of Thoracic Radiology members was conducted.
- Questionnaires collected data on TNB volume and NTM occurrences between 1978 and 1993.
- A literature review supplemented survey data for incidence and outcome analysis.
Main Results:
- 75 responses reported approximately 68,346 TNB, with 8 NTM cases identified.
- The estimated incidence of NTM was 0.012%.
- The average interval between TNB and NTM was 2.6 months; no predictable risk factors were found.
Conclusions:
- The incidence of NTM after TNB is very low, estimated at 0.012%.
- NTM appears to be a random and unavoidable complication.
- Further research may be needed to fully elucidate risk factors and optimize preventative strategies.