Kikuchi Fujimoto Disease Mimicking Large B-Cell Lymphoma

Lessons From the Friday Unknowns

Histologic sections of the lymph node biopsy specimen show a large area of necrosis and a few smaller foci surrounded by areas of viable lymph node.

The necrotic areas are composed of many ghosts of cells, eosinophilic amorphous debris and many apoptotic cells. Neutrophils, other types of…