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Mediastinal needle biopsy. A 15-year experience with 139 cases
1Department of Pathology, University of Tennessee, Memphis, USA.
Cancer
|September 15, 1995
Summary
Radiologically guided needle biopsy is a highly accurate diagnostic tool for mediastinal lesions, achieving 99% accuracy with adequate samples. Sclerotic lesions may require larger samples for definitive diagnosis.
Area of Science:
- Thoracic medicine
- Interventional radiology
- Cytopathology
Background:
- Radiologically guided needle biopsy is a crucial diagnostic method for mediastinal lesions.
- Accurate diagnosis is essential for effective treatment planning in patients with mediastinal abnormalities.
Purpose of the Study:
- To evaluate the diagnostic accuracy and reliability of radiologically guided needle biopsy for mediastinal lesions.
- To assess the overall effectiveness of this technique in a large single-institution series.
Main Methods:
- Retrospective review of 141 consecutive mediastinal needle biopsies from 139 patients over 15 years.
- Analysis of diagnostic yield, accuracy, and reasons for inadequate samples.
Main Results:
- Adequate material for diagnosis was obtained in 92% of cases (128/141).
- Malignant diagnoses were found in 74% (95/128), with carcinomas being the most common (81 cases).
- Overall cytologic diagnostic accuracy was 99% with adequate material, with one discrepancy involving lymphoma misdiagnosis.
Conclusions:
- Needle biopsy is a reliable and sensitive diagnostic tool for mediastinal lesions.
- High diagnostic accuracy (99%) is achievable with adequate sampling.
- Sclerotic lesions present a potential limitation, necessitating generous sampling.