A 45-year-old man presented with headache, fever, and lymphadenopathy. He had abnormal results on liver-function tests, a normal white-cell count with neutrophil predominance, atypical lymphocytes, mild anemia, and thrombocytopenia. Diagnostic tests were performed.
This case was presented at the Cancer Center Grand Rounds.
Disclosure forms provided by the authors are available with the full text of this article at NEJM.org.
Dr. LaCasce reports receiving fees for serving on an advisory board from Forty-Seven and Seattle Genetics and fees for serving on a data and safety monitoring board from Bristol-Myers Squibb. No other potential conflict of interest relevant to this article was reported.
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From the Department of Medical Oncology, Dana–Farber Cancer Institute (A.S.L.), the Departments of Radiology (E.J.F.), Medicine (R.H.G.), and Pathology (A.R.S.), Massachusetts General Hospital, and the Departments of Medicine (A.S.L., R.H.G.), Radiology (E.J.F.), and Pathology (A.R.S.), Harvard Medical School — all in Boston