STEP 3:
Histopathological subtyping
Histopathological subtypes of iMCD are useful in building a complete picture of diagnosis, but their clinical relevance remains uncertain. Please see below for guidance on how to identify subtypes.

Histopathological subtypes
- Hypervascular pathology
- Mixed pathology
- Plasmacytic pathology
Abbreviations
FDC, follicular dendritic cell; iMCD, idiopathic Multicentric Castleman Disease.