# A Curious Cyst Beyond the Thorax: A Rare Case of Extrathoracic Bronchogenic Cyst Over the Shoulder in a Child

## TL;DR

A rare case of a bronchogenic cyst found on a child's shoulder highlights the need to consider this condition in unusual cystic masses.

## Contribution

Reports a rare extrathoracic bronchogenic cyst in a child, expanding diagnostic awareness.

## Key findings

- A three-year-old female had a bronchogenic cyst diagnosed in the supraclavicular area.
- Extrathoracic bronchogenic cysts are rare and often misdiagnosed.
- Surgical excision is both diagnostic and curative for such cases.

## Abstract

Bronchogenic cysts are rare congenital malformations originating from abnormal budding of the tracheobronchial tree during embryogenesis. While typically found in the mediastinum or lungs, extrathoracic presentations, particularly in the scapular or shoulder region, are exceedingly rare. We report the case of a three-year-old female with a cystic lesion over the left supraclavicular area that was histopathologically diagnosed as a bronchogenic cyst. This case underscores the importance of including bronchogenic cysts in the differential diagnosis of pediatric cystic masses outside the thorax. Surgical excision remains both diagnostic and curative.