Nidhi Aggarwal, MD and Walid E. Khalbuss, MD, PhD, FIAC. Dept. of Pathology, University of Pittsburgh Medical Center (UMPC), Pittsburgh, PA, USA

69-year-old male with no history of malignancy presented with enlarged mesenteric lymph nodes the largest measuring 3.4 cm. US-Guided FNA was performed. (Images 1-3).
ICD-O Site: Lymph node FNA biopsy cytology

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Image 1 (Wright Giemsa)
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Image 2 (Papanicolau stain)
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Image 3 (Immunohistochemistry)
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Image 4 (Flow cytometry)

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Image 5 (Interphase Fluorescence In-Situ Hybridization
Dual-color dual-fusion probe


The most likely diagnosis of this lymph node specimen is?