Catalog

Pseudolymphomatous drug hypersensitivity syndrome

No MMS code

Link to WHO Definition

Pseudolymphomatous drug hypersensitivity syndrome – http://id.who.int/icd/entity/1697708659

An uncommon drug reaction characterised by an eruption of erythematous papules, nodules and infiltrated plaques arising usually within two to seven weeks of commencing the provoking drug. This reaction can be difficult to distinguish both clinically and histopathologically from a true lymphoma. A large number of drugs have been implicated but anticonvulsants including phenytoin and carbamazepine are well recognised causes. The condition may take months to resolve on withdrawal of the offending drug.