Annals of clinical and laboratory science · 2022
Valproic Acid Induced Thrombocytopenia and Dysmegakaryopoiesis in a Pediatric Patient.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Akgun Yamac, Baykara Yigit, Langlie Jake, Van Truong Lance, Poveda Julio
Аннотация
OBJECTIVE: Valproic acid (VPA) is an effective first-line anticonvulsant that is associated with several side effects including bone marrow suppression and subsequent cytopenia. However, VPA associated myelodysplasia is not a well described entity that can be seen in patients on VPA treatment.
CASE REPORT: Herein, we describe a 9-year-old female patient with a past medical history of seizure disorder who presented with 3-week history of intermittent fevers, fatigue, weakness, and multiple unexplained bruises. Complete blood count (CBC) was remarkable for marked thrombocytopenia. Trephine biopsy showed a normocellular marrow with maturing trilineage hematopoiesis and scattered atypical megakaryocytes including numerous small hypolobated forms with frequent forms showing separated nuclei. Her CBC showed normalization 7 months after VPA was stopped.
CONCLUSIONS: The presence of bone marrow suppression and myelodysplasia in patients on VPA treatment should be taken into consideration as it can cause a diagnostic pitfall especially in pediatric and elderly populations. A careful review of past medical history and medications can help make the correct diagnosis.
CASE REPORT: Herein, we describe a 9-year-old female patient with a past medical history of seizure disorder who presented with 3-week history of intermittent fevers, fatigue, weakness, and multiple unexplained bruises. Complete blood count (CBC) was remarkable for marked thrombocytopenia. Trephine biopsy showed a normocellular marrow with maturing trilineage hematopoiesis and scattered atypical megakaryocytes including numerous small hypolobated forms with frequent forms showing separated nuclei. Her CBC showed normalization 7 months after VPA was stopped.
CONCLUSIONS: The presence of bone marrow suppression and myelodysplasia in patients on VPA treatment should be taken into consideration as it can cause a diagnostic pitfall especially in pediatric and elderly populations. A careful review of past medical history and medications can help make the correct diagnosis.