# Metastatic Breast Cancer to the Esophagus Causing Pseudoachalasia

## TL;DR

A 65-year-old woman with metastatic breast cancer showed symptoms resembling achalasia, but a biopsy revealed cancer had spread to her esophagus.

## Contribution

This case highlights metastatic breast cancer to the esophagus presenting as pseudoachalasia, a rare and diagnostic challenge.

## Key findings

- The patient's symptoms and imaging suggested achalasia, but a biopsy confirmed metastatic breast cancer.
- Endosonography-guided biopsy was crucial for accurate diagnosis in this atypical case.

## Abstract

A unique case involving a 65-year-old woman with recurrent hormone-positive, HER-2-negative breast cancer stage IV (T2N2M1) with known metastases to the bone presented with worsening dysphagia and esophageal wall thickening on imaging masquerading as achalasia. However, endosonography (EUS)-guided biopsy of the esophagus wall demonstrated metastatic breast cancer to the esophagus causing pseudoachalasia.