# Macrophage Activation Syndrome Revealing Hodgkin Lymphoma: A Pediatric Case Report

## TL;DR

A 10-year-old child with a rare immune syndrome was found to have Hodgkin lymphoma, and treatment with chemotherapy led to remission.

## Contribution

This case report highlights a rare presentation of Hodgkin lymphoma in a pediatric patient with macrophage activation syndrome.

## Key findings

- The patient's macrophage activation syndrome led to the diagnosis of stage IV Hodgkin lymphoma.
- The OEPA and COPDAC chemotherapy regimens resulted in clinical and paraclinical remission.

## Abstract

Secondary macrophage activation syndrome is a severe and rare complication of infectious, autoimmune, and malignant diseases. Herein, we report the case of a 10-year-old child with this syndrome leading to the discovery of Hodgkin lymphoma. The patient, who had a medical history of cerebral palsy and ataxia-telangiectasia syndrome, was admitted for prolonged fever associated with cough, which had evolved into general health deterioration for two months prior to admission. He received multiple courses of antibiotic therapy for suspected pneumonia without clinical improvement. Clinical examination showed pallor, deteriorated general condition, high fever, asthenia, cervical adenopathy, and splenomegaly. The clinical and biological criteria led to the diagnosis of macrophage activation syndrome. Lymph node histology confirmed the diagnosis of Hodgkin lymphoma, which was staged as stage IV via positron emission tomography scan. The “vincristine, etoposide, prednisone, and doxorubicin” (OEPA) chemotherapy regimen was initiated, followed by the “cyclophosphamide, vincristine, prednisone, and dacarbazine” (COPDAC) regimen, with remission achieved both clinically and paraclinically after one cycle of each regimen.