Case Reports in Hematology / 2017 / Article / Fig 3

Case Report

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

Figure 3

Morphologic features of the soft tissue lesion upon relapse. (a) The core needle biopsy specimen is extensively replaced with atypical lymphoid infiltrate with predominantly medium-sized cells with fine chromatin, occasional distinct nucleoli, and scant cytoplasm (H&E, 200x). (b–d) Immunohistochemical stains show that the neoplastic cells are positive for CD20 ((b), 200x), PAX-5 ((c), 200x), and TdT ((d), 200x).

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