Sections show diffuse infiltrate of intermediate-sized rounded cells with non-cleaved nuclei with many very occasional histiocytes imparting starry sky pattern. Anaplasia is moderate. Picture is consistent with non-Hodgkin's lymphoma (possibilities include Burkitt's and lymphoblastic lymphoma). Confirmation and subtyping by marker study (CD20, CD79a, CD3, CD10, TdT and Ki67) is needed.
Generalized lymphadenopathy. ? Lymphoma.
Core fragments of collective length 1.6 cm.
Cervical lymph node, core biopsy: