PTGC is usually characterized by localized lymphadenopathy and is otherwise typically asymptomatic.
Progressive transformation of germinal centres
Atypical localization of immature precursors
Persistent polyclonal B-cell lymphocytosis
Lymphoid neoplasms with plasmablastic differentiation
Progressive osseous heteroplasia
Chronic active EBV infection
Extramedullary hematopoiesis
In situ lymphoid neoplasia