Abstract
The hypereosinophilic syndrome (HES) is a set of rare blood diseases defined by a persistent blood eosinophil count of ≥ 1.5 × 109 cells/l, with clinical features and organ dysfunction attributable to eosinophilia. The most frequently involved organ in HES is the heart. Kidney damage is considered to be rare. To the best of our knowledge, this is the first documented case of acute kidney injury secondary to the T-lymphocytic variant of HES reported in Pakistan. A 16-year-old boy presented with complaints of generalized body swelling, decreased urine output, and two episodes of cola-colored urine. His renal function was deteriorated with 3 + albuminuria and a protein: creatinine ratio of 6.58. The patient underwent a series of investigations (serum protein electrophoresis, computed tomography, lymph node and bone marrow biopsy, and peripheral blood flow cytometry) to know the actual cause of acute kidney injury. Eosinophilia was noticed on peripheral blood smear and bone marrow biopsy. Kidney biopsy showed acute tubular necrosis, while abdominal computed tomography exhibited hepatosplenomegaly and lymphadenopathy. Peripheral blood flow cytometry revealed the CD3 + T cells count of 4422 cells/µl, CD4 + T cell count of 1925 cells/µl, and CD8 + T cell count of 2195 cells/µl. The patient was diagnosed with lymphocytic variant hypereosinophilic syndrome (L-HES) and was effectively managed with prednisolone. L-HES is a recognized subtype of HES that can rarely present with early renal manifestations. Physicians should be vigilant of such uncommon presentations for appropriate management of these cases.
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Abdul Saboor Khan, Sidra J. Barry, and Fatima Memon did the literature search, drafted the initial manuscript, approved the final version of the manuscript, and agreed to be accountable for all aspects in ensuring that questions related to accuracy or integrity of any part of the work are appropriately investigated and resolved. Abdul Saboor Khan and Sidra J. Barry were actively involved in the patient’s care.
Taha Bin Arif and Anum Khalid contributed to the conception of the work, revised the manuscript for important intellectual content, approved the final version of the manuscript, and agreed to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
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Khan, A.S., Barry, S.J., Memon, F. et al. A Case of T-Lymphocytic Variant Hypereosinophilic Syndrome with Acute Kidney Injury as an Early Manifestation. SN Compr. Clin. Med. 4, 56 (2022). https://doi.org/10.1007/s42399-022-01139-8
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DOI: https://doi.org/10.1007/s42399-022-01139-8