# Portal venous gas: A benign finding in pyloric stenosis?

## TL;DR

A case report suggests portal venous gas may be a benign finding in infants with pyloric stenosis.

## Contribution

This case highlights a potential benign association between portal venous gas and pyloric stenosis.

## Key findings

- Portal venous gas was found incidentally in a patient with pyloric stenosis.
- The case suggests portal venous gas may not be ominous in the context of pyloric stenosis.

## Abstract

Pyloric stenosis is a condition of infancy characterized by hypertrophy of the pylorus, which can progress to significant narrowing and near‐obstruction of the gastric outlet. We describe a case of a patient with pyloric stenosis who was incidentally found to have portal venous gas on ultrasound. While the presence of portal venous gas can be an ominous finding, this case demonstrates that in the setting of pyloric stenosis, portal venous gas may be benign in nature. Additionally, we compile information from previous studies to further promote general recognition of this association and propose potential future standardization of care for these patients with an apparent benign finding.