Article ; Online: Fever with atypical lymphocytosis: pearls and pitfalls in Epstein-Barr virus serology.
BMJ case reports
2023 Volume 16, Issue 5
Abstract: The heterophile antibody (also known as the Monospot) test is a useful screening tool for infectious mononucleosis (IM) resulting from primary Epstein-Barr virus (EBV) infection. However, up to 10% of patients with IM are heterophile negative. ... ...
Abstract | The heterophile antibody (also known as the Monospot) test is a useful screening tool for infectious mononucleosis (IM) resulting from primary Epstein-Barr virus (EBV) infection. However, up to 10% of patients with IM are heterophile negative. Heterophile-negative patients who have lymphocytosis or atypical lymphocytes on peripheral blood smear should be further tested for EBV serologies, which include testing for specific IgM and IgG antibodies against viral capsid antigens, early antigens and EBV nuclear antigen proteins. A diagnostic dilemma arises when the patient has clinical and laboratory features of IM, but is both heterophile negative and seronegative for IM, as illustrated in this case presentation. To avoid missed diagnoses of IM, misdiagnosis of mononucleosis-like illnesses and unnecessary testing, knowledge of test characteristics and the evolving course of EBV serologies is important to assure and inform both the physician and the patient. |
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MeSH term(s) | Humans ; Epstein-Barr Virus Infections ; Herpesvirus 4, Human ; Lymphocytosis/diagnosis ; Infectious Mononucleosis/diagnosis ; Antigens, Viral ; Fever ; Antibodies, Viral |
Chemical Substances | Antigens, Viral ; Antibodies, Viral |
Language | English |
Publishing date | 2023-05-03 |
Publishing country | England |
Document type | Case Reports ; Journal Article |
ISSN | 1757-790X |
ISSN (online) | 1757-790X |
DOI | 10.1136/bcr-2022-250081 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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