# High-altitude Cerebral Edema and High-altitude Pulmonary Edema Diagnosed in the Desert: A Case Report

## TL;DR

A woman developed life-threatening high-altitude brain and lung swelling after climbing to a moderate elevation, highlighting the importance of quick diagnosis and treatment.

## Contribution

This case report demonstrates that high-altitude cerebral and pulmonary edema can occur at lower elevations than typically expected.

## Key findings

- A 46-year-old woman developed HACE and HAPE after ascending to 2,400 meters.
- Symptoms resolved within 24 hours with appropriate treatment.
- The case emphasizes the need for prompt recognition of these conditions at moderate altitudes.

## Abstract

Acute mountain sickness, high-altitude pulmonary edema (HAPE), and high-altitude cerebral edema (HACE) are a spectrum of high-altitude conditions, with HACE being the most life-threatening. Most cases develop at altitudes of greater than 4,000 meters (∼13,000 feet) above sea level and after one to five days.

A previously healthy 46-year-old female presented to the emergency department with ataxia, altered mental status, and vomiting that developed after rapidly ascending to ∼2,400 meters (∼7,800 feet) above sea level. She was treated for HACE and HAPE with resolution of her symptoms within 24 hours.

High-altitude pulmonary edema and HACE can develop rapidly and at moderate altitudes. Expeditious recognition and treatment is imperative to avoid life-threatening complications.