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The Korean Journal of Cytopathology 2002;13(2): 60-65.
Fine Needle Aspiration Cytologic Features of Follicular Lymphoma.
Jin Haeng Chung, Hwa Jeong Ha, Sun Hoo Park, Jae Soo Koh, Min Suk Kim, Seung Sook Lee, Kyung Ja Cho
1Department of Pathology, Korea Cancer Center Hospital, Korea. jhc@kcch.re.kr
2Department of Pathology, Ulsan University College of Medicine, Seoul, Korea.
ABSTRACT
The accuracy of fine needle aspiration cytology(FNAC) for the diagnosis of follicular lymphoma was investigated by a review of 13 FNAC specimens from 10 patients. All patients included in this study were confirmed by surgical biopsy preceded by FNAC. Three aspirates were unsatisfactory because of scanty cellularity. Among the remaining 10 cases, 5(50%) were diagnosed as lymphoma, 3(30%) as reactive hyperplasia, one(10%) as metastatic small cell carcinoma, and one(10%) as granulomatous inflammation. Cytologic distinction between follicular lymphoma and reactive hyperplasia is very difficult with cytomorphology alone. Compared to reactive hyperplasia, the characteristic cytologic features such as relatively homogeneous cellular constituent, paucity of tingible body macrophages and lymphohistiocytic aggregates, and less mitotic activity in follicular lymphoma are important findings to prevent false negative diagnosis. In addition, lymphoglandular bodies are useful in distinguishing malignant epithelial tumor from lymphoid lesion.
Key Words: Fine needle aspiration cytology; Follicular lymphoma; Reactive hyperplasia