Neoplastic proliferations of white cells refer to an abnormal increase in growth and number of white cells. Common examples include myeloid neoplasms, lymphoid neoplasms, and langerhans cell histiocytosis.
(A) Diffuse neoplastic proliferation of atypical lymphoid cells showing infiltration of blood vessel walls (star). (B) The lymphoma is flanked by areas of frank necrosis, typical for NK/T-cell lymphoma. (C) High-power view: medium-sized elongated and angulated cells admixed with larger cells showing distinct nucleoli. (D) High-power view: angiocentric/angiodestructive growth pattern (arrow). A Case Report of Primary Nasal Natural Killer (NK)/T-Cell Lymphoma in an African American Patient Presenting with Hemophagocytic Syndrome: The American Journal of Case Reports. Not altered. CC.
