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Extranodal Follicular Dendritic Cell Sarcoma with Rapid Growth in Parapharynx: A Case Report
Korean Journal of Pathology ; : 306-310, 2012.
Article in English | WPRIM | ID: wpr-138590
ABSTRACT
Follicular dendritic cell sarcoma (FDCS) is a rare malignancy arising from the antigen-presenting cells in the lymph node and extranodal tissue. We describe a 31-year-old male patient who presented with a swelling of the left parapharynx. The radiologic findings showed a 4.7x4.5x1.9 cm-sized, ill-defined mass in the left parapharyngeal space. A fine-needle aspiration cytology was performed and it showed scattered, irregular, cohesive clusters of tumor cells with a spindle-to-ovoid shape with irregular contours in a background of lymphocytes. Based on these findings, a diagnosis of spindle cell neoplasm was made. The surgically resected tumor was composed of elongated, ovoid or polygonal cells showing positive immunohistochemistry for CD21, CD23, and CD35. Postoperatively, the residual tumor was observed to undergo a rapidly growth. There is an overlap in the cytologic and histologic findings between FDCS of the parapharynx and other tumors. Pathologists should therefore be aware of its characteristics not only to provide an accurate diagnosis but also to recommend the appropriate clinical management.
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Full text: Available Index: WPRIM (Western Pacific) Limits: Humans / Male Language: English Journal: Korean Journal of Pathology Year: 2012 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Limits: Humans / Male Language: English Journal: Korean Journal of Pathology Year: 2012 Type: Article