In March, 2010, a 44-year-old Moroccan man presented to us with a 1-year history of unilateral cervical mass, fatigue, and malaise. He had no night sweats, fever, or weight loss. Medical history was unremarkable. On physical examination, two enlarged lymph nodes (2 0 cm and 3-5 cm diameter) were found medial to the left sternocleidomaswtoid muscle. There was no hepato-splenomegaly; respiratory examination was normal. Laboratoiy tests showed normal ESR (1 mm/h), leucocyte count (7-lxl09/L, with normal differentiation), and concentrations of C-reactive protein (<2'5 mg/L), calcium, albumin, and lactate dehydrogenase.
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