PMID- 34351024 OWN - NLM STAT- MEDLINE DCOM- 20220404 LR - 20220405 IS - 1365-2303 (Electronic) IS - 0956-5507 (Linking) VI - 33 IP - 1 DP - 2022 Jan TI - Follicular dendritic cell sarcoma of the cervical lymph node diagnosed on fine needle aspiration cytology. PG - 119-122 LID - 10.1111/cyt.13047 [doi] AB - Follicular dendritic cell sarcomas (FDCS) are rare tumours of lymph nodes and extranodal tissues which are grouped with the histiocytic and dendritic cell neoplasms. The diagnosis is usually made after thorough clinical and pathological examination with immunohistochemical analysis. Difficulties persist in diagnosing FDCS on cytological preparations. We report herein a case of a 57-year-old female who presented with a right neck mass of 5 months duration. Computed Tomography (CT) imaging of the neck reported a necrotic right level IIb lymph node and asymmetric fullness of the right palatine tonsil. Fine needle aspiration (FNA) biopsy revealed numerous spindle, oval and stellate neoplastic cells, arranged singly and in syncytia with moderate nuclear pleomorphism, vesicular chromatin pattern, and prominent nucleoli, sprinkled with small lymphocytes. The tumour cells were strongly diffusely positive for CD21, CD23, and D2-40 immunostaining on cell bock sections, but were negative for CD1a and CD34, supporting the diagnosis of FDCS. Follow-up surgical pathology on the resection showed histopathological features and an immunohistochemical profile consistent with FDCS. CI - (c) 2021 John Wiley & Sons Ltd. FAU - Xia, Rong AU - Xia R AUID- ORCID: 0000-0001-8573-2152 AD - Department of Pathology, New York University Langone Health, New York, NY, USA. FAU - Shafizadeh, Negin AU - Shafizadeh N AD - Department of Pathology, New York University Langone Health, New York, NY, USA. FAU - Brandler, Tamar AU - Brandler T AD - Department of Pathology, New York University Langone Health, New York, NY, USA. FAU - Liu, Cheng AU - Liu C AD - Department of Pathology, New York University Langone Health, New York, NY, USA. FAU - Oweity, Thaira AU - Oweity T AD - Department of Pathology, New York University Langone Health, New York, NY, USA. LA - eng PT - Case Reports PT - Journal Article DEP - 20210830 PL - England TA - Cytopathology JT - Cytopathology : official journal of the British Society for Clinical Cytology JID - 9010345 SB - IM MH - Biopsy, Fine-Needle/methods MH - *Dendritic Cell Sarcoma, Follicular/diagnosis/pathology MH - Female MH - Humans MH - Lymph Nodes/pathology MH - Middle Aged MH - Neck/pathology MH - *Sarcoma/pathology OTO - NOTNLM OT - CD21 OT - CD23 OT - fine needle aspiration cytology OT - follicular dendritic cell sarcoma OT - neck swelling EDAT- 2021/08/06 06:00 MHDA- 2022/04/05 06:00 CRDT- 2021/08/05 08:53 PHST- 2021/07/07 00:00 [revised] PHST- 2021/04/11 00:00 [received] PHST- 2021/08/02 00:00 [accepted] PHST- 2021/08/06 06:00 [pubmed] PHST- 2022/04/05 06:00 [medline] PHST- 2021/08/05 08:53 [entrez] AID - 10.1111/cyt.13047 [doi] PST - ppublish SO - Cytopathology. 2022 Jan;33(1):119-122. doi: 10.1111/cyt.13047. Epub 2021 Aug 30.