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KMID : 0357920090430060589
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Korean Journal of Pathology
2009 Volume.43 No. 6 p.589 ~ p.593
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Cytology of Follicular Dendritic Cell Sarcoma on Intraoperative Touch Imprint Smears - A Case Report -
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Song Ju-Young
Han Jee-Young
Kim Lucia
Park In-Suh
Kim Joon-Mee
Joo Young-Chae
Choi Suk-Jin
Choi Suk-Jin
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Abstract
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Follicular dendritic cell (FDC) sarcoma is a neoplastic proliferation of FDCs. Because its cytologic findings can vary widely, both the cytomorphology and histopathology of FDC sarcoma can impose a significant diagnostic dilemma. We present cytologic features of FDC sarcoma assessed by intraoperative touch imprint. Intra-abdominal lymphadenopathies were noted in 54-year-old male with hepatitis B-virus associated liver cirrhosis. In contrast to cytologic features of classical FDC sarcoma, the tumor cells featured a large epithelioid or Reed-Sternberg cell-like shape scattered in a background with abundant inflammatory cells, which led to a mistaken diagnosis of malignant lymphoma. However, in accordance with cytologic features previously described in the literature, the tumor cells were characterized by a fragile cytoplasm with cytoplasmic processes in dendritic or reticulated patterns reminiscent of the ultrastructural features of FDC. Cytoplasmic features rendering nuclei with a tendency to form clusters or syncytial aggregates associated with reactive lymphocytes appear to be the most valuable finding in diagnosis of FDC sarcoma.
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KEYWORD
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Dendritic cell, Follicular, Sarcoma, Cytology, Lymph nodes
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