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False negative orbital fine needle biopsy.

Devron H Char1, Tia B Cole, Theodore R Miller

  • 1The Tumori Foundation, San Francisco, CA 94114, USA. devron@tumori.org

Orbit (Amsterdam, Netherlands)
|May 4, 2012
PubMed
Summary
This summary is machine-generated.

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Orbital fine needle aspiration biopsy (FNAB) can aid diagnosis, but may require surgical removal for definitive results. In this case, FNAB suggested lymphocytes, yet the tumor was a mucoepidermoid carcinoma.

Area of Science:

  • Ophthalmology
  • Oncology
  • Pathology

Background:

  • Orbital fine needle aspiration biopsy (FNAB) is a diagnostic tool for orbital lesions.
  • Accurate diagnosis is crucial for appropriate treatment planning of orbital tumors.

Observation:

  • An FNAB of an orbital lesion revealed lymphocytes.
  • The surgeon suspected the FNAB diagnosis might be inaccurate.
  • The tumor was surgically excised for further examination.

Findings:

  • Histopathological analysis of the excised tumor confirmed mucoepidermoid carcinoma.
  • The lacrimal gland was involved by the carcinoma.
  • Significant lymphocytic infiltration was noted within the tumor.

Implications:

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  • FNAB can be a useful adjunct but may not always provide a definitive diagnosis for orbital tumors.
  • Surgical excision remains essential for accurate diagnosis and staging of suspected orbital malignancies.
  • Lymphocytic infiltration in mucoepidermoid carcinoma may warrant further investigation into its role in tumor behavior.