INFECTIOUS DISEASES COMPLICATED BY HEMOPHAGOCYTIC LYMPHOHISTIOCYTOSIS – A RARE CASE SERIES

AJAY CHHABRA; SALONI KHATTAR; PERMEET BAGGA

doi:10.22159/ajpcr.2024.v17i5.50419

Authors

AJAY CHHABRA Department of Medicine, Government Medical College, Amritsar, Punjab, India
SALONI KHATTAR Department of Medicine, Government Medical College, Amritsar, Punjab, India https://orcid.org/0009-0002-3729-4025
PERMEET BAGGA Department of Pathology, Government Medical College, Amritsar, Punjab, India

DOI:

https://doi.org/10.22159/ajpcr.2024.v17i5.50419

Keywords:

haemophagocytic lymphohistiocytosis, immunology, hematology

Abstract

Hemophagocytic lymphohistiocytosis (HLH) is a rare, yet potentially fatal disorder of uncontrolled inflammation and dysregulated immunity. Patients may present with features ranging from fever, rash, and cytopenias to fatal multiorgan failure. Here, we present a case series reporting four cases of HLH, their clinicopathological findings, laboratory investigations, and outcomes. The underlying causes for the four cases were found to be infective ones, i.e., Leptospira, hepatitis-E and herpes simplex virus-1, kala-azar and malaria and enteric fever. HLH is a manifestation of the dysregulated immune response of various T cells leading to cytokinemia causing an accumulation of macrophages and T lymphocytes in various tissues. Infections account for about half of all HLH cases in adults the world over. In our institute, infections may still be more prevalent as a cause. Moreover, this may be the scenario in our country where infectious diseases remain a major proportion of the disease burden.

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