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Follicular dendritic cell sarcoma: a diagnostic challenge !
Ajay Malik1, Ajit Veniyoor, Barnard Fanthome
1Department of Pathology, AFMC, Pune, India. drajaymalik@gmail.com
Journal of Cancer Research and Therapeutics
|July 31, 2012
Summary
Follicular dendritic cell sarcoma (FDCS) is a rare tumor. This report details the first case of FDCS originating in the anal canal, confirmed by immunohistochemistry.
Area of Science:
- Oncology
- Pathology
Background:
- Follicular dendritic cell sarcoma (FDCS) is a rare spindle cell neoplasm originating from histiocytic-dendritic cells.
- While typically found in lymph nodes, FDCS can occur in extranodal sites such as the head and neck, mediastinum, and gastrointestinal tract.
Observation:
- This study presents the first reported case of FDCS arising in the anal canal.
- The patient was a 56-year-old male.
- Histological examination revealed bland short spindle cells with focal whorl formation and scattered lymphocytes.
Findings:
- Immunohistochemical analysis showed tumor cells were positive for CD21, CD23, CD35, and vimentin.
- These markers are characteristic of follicular dendritic cell origin.
Implications:
- The diagnosis of FDCS can be challenging due to its potentially misleading morphology.
- Immunohistochemistry is crucial for accurate diagnosis and guiding appropriate therapeutic strategies for this rare anal cancer.
