Histologic sections from a rapidly enlarged cervical lymph node in a 35-year-old female reveal a diffuse, monotonous proliferation of small, noncleaved lymphocytes, which are forming a "starry sky" appearance because numerous tingible-body macrophages are present. A touch prep reveals that many of these cells have cytoplasmic vacuoles, which would most likely react with
Myeloperoxidase Oil red O Nonspecific esterase Chloracetate esterase