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Agranulocytosis occurrence following recent acute infectious mononucleosis
Anthony F Massoll1, Stanlyn C Powers2, David P Betten3
1Michigan State University College of Human Medicine, East Lansing, MI, United States.
Abstract:
Infectious mononucleosis secondary to Epstein-Barr virus typically follows a relatively benign and self-limited course. A small subset of individuals may develop further progression of disease including hematologic, neurologic, and cardiac abnormalities. A mild transient neutropenia occurring during the first weeks of acute infection is a common finding however in rare cases a more profound neutropenia and agranulocytosis may occur up to 6weeks following the onset of initial symptoms. We describe the case of an 18-year-old woman who presented 26days following an acute infectious mononucleosis diagnosis with agranulocytosis and fever. No source of infection was identified and the patient had rapid improvement in her symptoms and resolution of her neutropenia. The presence of fever recurrence and other non-specific symptoms in individuals 2-6weeks following acute infectious mononucleosis symptom onset may warrant further assessment for this uncommon event.
Insights
Infectious mononucleosis can rarely lead to agranulocytosis, a severe drop in white blood cells, weeks after initial symptoms. Prompt evaluation of fever recurrence is crucial for early detection and management of this Epstein-Barr virus complication.
Area of Science:
- Hematology
- Infectious Diseases
- Virology
Background:
- Infectious mononucleosis, caused by Epstein-Barr virus (EBV), is usually self-limiting.
- While mild neutropenia is common, severe neutropenia and agranulocytosis are rare complications.
- These severe hematologic abnormalities can manifest up to six weeks post-infection.
Observation:
- A case report details an 18-year-old female presenting with agranulocytosis and fever.
- Symptoms appeared 26 days after an infectious mononucleosis diagnosis.
- No specific infectious source was identified for the agranulocytosis.
Findings:
- The patient experienced rapid symptom improvement and resolution of neutropenia.
- This suggests a potential link between EBV infection and delayed-onset agranulocytosis.
- Fever recurrence in the 2-6 week window post-mononucleosis warrants investigation.
Implications:
- Highlights a rare but serious hematologic complication of Epstein-Barr virus infection.
- Emphasizes the importance of monitoring for delayed neutropenia and agranulocytosis.
- Suggests clinical vigilance for non-specific symptoms like fever recurrence following infectious mononucleosis.
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