{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T17:12:49Z","timestamp":1780593169325,"version":"3.54.1"},"reference-count":34,"publisher":"American Society of Clinical Oncology (ASCO)","issue":"6","content-domain":{"domain":["ascopubs.org"],"crossmark-restriction":true},"short-container-title":["JCO"],"published-print":{"date-parts":[[2016,2,20]]},"abstract":"<jats:p> The Oncology Grand Rounds series is designed to place original reports published in the Journal into clinical context. A case presentation is followed by a description of diagnostic and management challenges, a review of the relevant literature, and a summary of the authors\u2019 suggested management approaches. The goal of this series is to help readers better understand how to apply the results of key studies, including those published in Journal of Clinical Oncology, to patients seen in their own clinical practice. <\/jats:p><jats:p> A 23-year-old man was urgently referred for evaluation of rapidly enlarging cervical lymphadenopathy, progressive dyspnea, fatigue, night sweats, and an unintentional weight loss of 25 pounds. A computed tomography scan of the neck performed 30 days before referral revealed bilateral cervical and supraclavicular lymphadenopathy (6 \u00d7 5 cm). A fine-needle aspirate of nasopharyngeal tissue demonstrated fibroadipose tissue. Tissue collected by core needle biopsy of a left internal jugular lymph node demonstrated a reactive lymph node but no malignancy. The patient was admitted to an academic medical center hospital. His physical examination was remarkable for bulky cervical and supraclavicular lymphadenopathy. A testicular examination was normal. The patient\u2019s lactate dehydrogenase concentration was 327 U\/L (normal range, 118-225 U\/L). A positron emission tomography scan revealed bilateral cervical and supraclavicular lymphadenopathy (6 \u00d7 5 cm with a standardized uptake value [SUV] of 14), a 1.3-cm subcutaneous nodule in the left thigh (SUV 16), and two 2.7-cm liver lesions (SUV 14). He underwent an excisional lymph node biopsy. The lymph node revealed effacement of the architecture by an interfollicular infiltrate of lymphoid cells ( Fig 1 ). Mitotic figures were abundant (Ki-67 stain 80% to 90% positive) and there were multiple foci of tissue necrosis. The lymphoblasts were examined by flow cytometry and immunohistochemistry and expressed the T-cell markers CD2, CD3, CD4, and terminal deoxynucleotidyl transferase. A subpopulation of T cells was positive for both CD4 and CD8. Polymerase chain reaction studies revealed a clonal rearrangement of the T-cell receptor \u03b3 gene. A marrow aspirate and biopsy revealed normal trilineage hematopoiesis with no evidence of lymphoma and a normal male karyotype (46, XY). A lumbar puncture sample did not contain lymphoma cells. 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