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Phenytoin hypersensitivity hepatitis and mononucleosis syndrome.

Authors
Type
Published Article
Journal
Journal of Clinical Gastroenterology
0192-0790
Publisher
Ovid Technologies (Wolters Kluwer) - Lippincott Williams & Wilkins
Publication Date
Volume
8
Issue
4
Pages
469–477
Identifiers
PMID: 3093562
Source
Medline
License
Unknown

Abstract

We present a patient who developed a mononucleosis syndrome 6 weeks after starting phenytoin therapy for a seizure disorder. Improvement followed initial discontinuation of the phenytoin, but near-fatal hepatic necrosis resulted from intravenous phenytoin rechallenge. A serious reaction with a 18% overall mortality, phenytoin hepatitis may closely resemble infectious mononucleosis with fever, pharyngitis, lymphadenopathy, and atypical lymphocytosis. Continued administration of phenytoin or later rechallenge may increase the severity of the reaction.

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