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Signet ring cell lymphoma of follicular type with BCL2 gene rearrangement: A rare case with a short review of literature


1 Department of Pathology and Lab Medicine, All India Institute of Medical Sciences (AIIMS), Bhubaneswar, Odisha, India
2 Department of Surgical Oncology, All India Institute of Medical Sciences (AIIMS), Bhubaneswar, Odisha, India
3 Department of Cytogenetics, Tata Memorial Center, Kolkata, West Bengal, India

Correspondence Address:
Mukund Sable,
Department of Pathology and Laboratory Medicine, All India Institute of Medical Sciences, Bhubaneswar, Odisha
India
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcrt.JCRT_676_19

A case of signet ring cell lymphoma of presacral lymph node is reported. The patient was diagnosed as follicular lymphoma on the basis of clinical and laboratory features, including immunohistochemistry (IHC) and gene rearrangement studies. Light microscopy examination showed neoplastic atypical cells with signet ring cell morphology in core biopsy of lymph node that stained for B-cell markers by IHC. In addition, the neoplastic cells expressed CD20, CD10, BCL-2, and BCL-6, indicating follicular center origin. Fluorescence in situ hybridization study demonstrated BCL2 gene arrangement. Especially in the case of deep-seated intra-abdominal lymph nodes with atypical presentation, the differential diagnosis arises with nonhemopoietic tumors, and this needs to be distinguished by specific immunostaining and gene arrangement studies.


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