Case Reports in Hematology / 2017 / Article / Fig 1

Case Report

An Unsuspected Finding of t(9;22): A Rare Case of Philadelphia Chromosome-Positive B-Lymphoblastic Lymphoma

Figure 1

Morphologic features of the L5 lesion. (a) The core needle biopsy specimen is extensively replaced with atypical lymphoid infiltrate with predominantly medium-sized cells fine chromatin, occasional distinct nucleoli, and scant cytoplasm (H&E, 400x). (b–d) Immunohistochemical stains show that the neoplastic cells are positive for CD19 ((b), 400x), CD20 ((c), 400x), and TdT ((d), 400x).

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