Table 3.

Morphological descriptors in Kikuchi disease[14]

Features	Description
Architecture	Distorted nodal architecture due to irregular para cortical hyperplasia.
Cellular component	Predominantly histiocytes and plasmacytoid monocytes, immunoblasts are seen. Three types of histiocytes: Crescent histiocytes, foamy histiocytes and signet ring histiocytes.
Necrosis	Neutrophil free necrosis with abundant Karyorrhectic debris and fibrin deposits Thrombosed vessels usually are seen around the areas of necrosis