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Soft tissue aspiration cytopathology.

P E Wakely1, J S Kneisl

  • 1Department of Pathology, The Ohio State University College of Medicine, Columbus, Ohio 43210, USA. wakely-2@medctr.osu.edu

Cancer
|October 20, 2000
PubMed
Summary

Fine-needle aspiration biopsy is an accurate, minimally invasive tool for diagnosing soft tissue masses. This method effectively identifies benign, malignant, metastatic, and recurrent tumors with high sensitivity and specificity.

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Area of Science:

  • Pathology
  • Oncology
  • Surgical Pathology

Background:

  • Fine-needle aspiration (FNA) biopsy for soft tissue masses is uncommon and debated.
  • Traditional methods include excision or incisional biopsy for tissue procurement.

Purpose of the Study:

  • To evaluate the diagnostic utility of FNA biopsy for soft tissue masses.
  • To assess the accuracy and safety of FNA in diagnosing neoplastic and non-neoplastic soft tissue lesions.

Main Methods:

  • Reviewed 82 FNA procedures from 77 patients over 11 months.
  • Diagnoses were confirmed via tissue examination, flow cytometry, clinical outcome, or repeat FNA.
  • Patients were followed for at least one year for clinical evaluation and disease status.

Main Results:

  • 51% of masses were malignant, 39% benign; 100% sensitivity and 97% specificity for malignancy.
  • Malignant aspirates included sarcomas, carcinomas, lymphomas, and melanomas.
  • Accurate subtyping was achieved in 83% of malignant and 72% of benign aspirates.

Conclusions:

  • FNA biopsy is an accurate, minimally invasive method for initial diagnosis of soft tissue masses.
  • It aids in confirming metastatic tumors and documenting recurrent neoplasms.
  • Subtyping is feasible with additional cell block or flow cytometry data.

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