# Remission of low-grade lymphomatoid granulomatosis with extensive pulmonary involvement following immune restoration via antiretroviral therapy in a newly diagnosed HIV patient

## TL;DR

A newly diagnosed HIV patient with a rare lung disease called lymphomatoid granulomatosis experienced full remission after starting antiretroviral therapy.

## Contribution

This case demonstrates that immune restoration via antiretroviral therapy can lead to remission in low-grade lymphomatoid granulomatosis.

## Key findings

- The patient achieved complete clinical and radiological remission of LYG following antiretroviral therapy.
- The case highlights the importance of immune restoration in managing EBV-driven lymphoproliferative diseases.
- LYG with extensive pulmonary involvement can be effectively treated with HIV treatment.

## Abstract

Lymphomatoid granulomatosis (LYG) is a rare Epstein-Barr virus (EBV)-driven lymphoproliferative disease that usually arises in the context of reduced immunological surveillance. Based on histology, two forms of the disease are recognized, namely low-grade and high-grade LYG. Clinically, LYG universally involves the lungs and, frequently, also the skin, central nervous system, liver, and kidneys. Here, we present the case of a 55-year-old woman with a difficult-to-diagnose low-grade LYG with symptomatic lung involvement, who concomitantly was newly diagnosed with human immunodeficiency virus (HIV) infection. Rapid immune recovery achieved through antiretroviral therapy led to a complete and sustained clinical and radiological remission of LYG.