Pseudolymphoma

Pseudolymphoma is a benign lymphocytic infiltrate that resembles cutaneous lymphoma histologically, clinically, or both.

Lymphoma cutis is the most important type of pseudolymphoma.

Presentation
It manifests with diarrhoea, hepatosplenomegaly, moderate lymph node enlargement without histopathological changes and evidence of the reticulo-endothelial system involvement.

Cause
It is an adverse effect of phenytoin.