# Successful thoracoscopic enucleation of a calcifying fibrous tumor of the lower mediastinum in a young woman

## TL;DR

A 31-year-old woman successfully underwent thoracoscopic surgery to remove a rare benign chest tumor.

## Contribution

This case report demonstrates successful thoracoscopic enucleation for a calcifying fibrous tumor in a young adult.

## Key findings

- Thoracoscopic enucleation was effective for a calcifying fibrous tumor in the lower mediastinum.
- Histopathological analysis confirmed the diagnosis of a calcifying fibrous tumor with granulomatous calcifications.

## Abstract

Calcifying fibrous tumor (CFT) arising from the pleura is a relatively rare benign lesion in young and middle-aged adults. We report a 31-year-old woman with pleural CFT who underwent successful complete thoracoscopic enucleation.

An asymptomatic woman presented with a mass in the right lower lung field that was incidentally detected on a chest X-ray during a routine medical checkup. Chest computed tomography showed a well-defined mass in the lower mediastinum, with a maximum diameter of approximately 5.5 cm. Esophagogastroduodenoscopy showed no abnormal findings in the esophagus. An endoscopic ultrasonography (EUS) revealed a well-defined tumor with no internal blood flow. EUS-fine needle aspiration failed to establish a definitive diagnosis. Therefore, thoracoscopic tumor enucleation was performed for diagnostic and therapeutic purposes. Based on the histopathological findings of the resected specimen, the presence of a tumor with a high fibrous component in a young woman, and the identification of granulomatous calcifications, a diagnosis of CFT was established.

Complete thoracoscopic tumor enucleation was successfully performed for CFT arising from the pleura in a young adult woman.