Investigation of lymphoid lesions of the head and neck using combined fine needle aspiration cytology and flow cytometry: Accuracy and pitfalls.
Authors of this article are:
Crous H, Gillam A, Kalokerinos MA, Knezevic S, Hobson P, Papadimos DJ, Shield PW.
A summary of the article is shown below:
OBJECTIVE: We reviewed the diagnostic utility of combined fine needle aspiration cytology (FNAC) and flow cytometry (FC) in the diagnosis of lymphoid lesions of the head and neck.METHOD: In total, 1402 patients with combined FNAC-FC reports were correlated with follow-up information. Rapid on-site evaluation (ROSE) of cytological specimens was performed in 52% of cases.RESULTS: In total, 211 lymphoid malignancies were identified, including 198 non-Hodgkin lymphoma (NHL) and 13 Hodgkin lymphoma (HL). Accuracy measures for NHL were: sensitivity 95.5%; specificity 99.9%; PPV 99.5%; NPV 99.2%; accuracy 99.3%. Only seven of 13 cases of HL were detected by FNAC-FC. False negative cases included HL (six cases), diffuse large B-cell lymphoma (four), T-cell lymphoma (two), follicular lymphoma (one), marginal zone cell lymphoma (one) and B-cell NHL, not otherwise specified (one). Two false positive results were identified: one immunoblastic hyperplasia reported as suspicious for HL and one case reported as suggestive of NHL that was found to be reactive hyperplasia. Cases collected with ROSE had a significantly lower rate (P < 0.0001) of insufficient cells for FC analysis (7.0%) than cases where ROSE was not performed (16.4%). Sensitivity (P < 0.0001) and NPV (P = 0.0023) were significantly higher for ROSE-collected specimens. None of the false-negative NHL cases had ROSE performed.CONCLUSIONS: FNAC-FC is a highly sensitive and specific test for NHL. Diagnostic errors mostly involved HL, large cell lymphomas and T-cell lymphomas. ROSE results in a significantly higher adequacy rate for FC and higher sensitivity for NHL.© 2019 John Wiley & Sons Ltd.
Check out the article’s website on Pubmed for more information:
This article is a good source of information and a good way to become familiar with topics such as: accuracy;cytology;fine needle aspiration;flow cytometry;head and neck;lymphoma.
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