# Unilateral Alveolar Hemorrhage: A Rare Pulmonary Complication in Systemic Lupus Erythematosus

## TL;DR

This paper reports a rare case of one-sided lung bleeding in a patient with lupus, which improved with steroid treatment.

## Contribution

The case highlights the rare unilateral presentation of alveolar hemorrhage in systemic lupus erythematosus.

## Key findings

- A patient with SLE and lupus nephropathy experienced unilateral alveolar hemorrhage.
- Steroid boluses led to clinical improvement in the patient.
- Unilateral involvement is uncommon and requires careful differential diagnosis.

## Abstract

Systemic lupus erythematosus (SLE) is an autoimmune disease that presents a broad spectrum of clinical manifestations. Alveolar hemorrhage in SLE is rare and has a poor prognosis. We present the case of a patient with a diagnosis of SLE and lupus nephropathy on hemodialysis who presented criteria for alveolar hemorrhage with unilateral involvement, with clinical improvement after the administration of steroid boluses. The uncommon presentation of unilateral pulmonary involvement and the importance of making an adequate protocol for ruling out differential diagnoses are highlighted.