Journal List > Korean J Hematol > v.43(4) > 1032798

Park, Lee, Kim, Lee, Kim, Choi, Shin, Chang, and Cho: A Case of Primary NK/T Cell Lymphoma of the Testis

Abstract

Primary testicular lymphoma account for 1∼5% of all testicular neoplasms. The majority of these tumors are diffuse large B-cell non-Hodgkin lymphoma. Primary NK/T cell lymphoma of the testis is a rare entity. Regardless of treatment, the majority of these patients have exhibited a highly aggressive clinical course and they have died within 1 year because of early dissemination. We report here on a case of the aggressive ‘nasal type’ natural killer (NK)/T cell lymphoma that initially presented as a testicular tumor. A 63-year-old man presented with painless left testicular swelling, and so a left orchiectomy was performed. A biopsy specimen of the testis revealed an extranodal NK/T cell lymphoma of the nasal type. In-situ hybridization for Epstein-Barr virus proved positive. The patient received systemic chemotherapy with 3 courses of a combination regimen.

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Fig. 1
Postoperative abdominal CT scan finding. (A) The jejunum shows multifocal wall thickening(arrow). (B) Multiple mesenteric lymph nodes are noted.
kjh-43-276f1.tif
Fig. 2
Microscopic findings of testicular mass showing a diffuse dense infiltration of atypical medium sized lymphoid cells with high mitotic rate accompanied by angio-centric infiltration (H&E statin, ×400).
kjh-43-276f2.tif
Fig. 3
Immunohistochemical staining shows (A) CD3+ (×400), and (B) CD56+ (×400).
kjh-43-276f3.tif
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