Complete excision of acute necrotic regression of thymoma mimicking an infected mediastinal cyst with mediastinitis using video-assisted thoracoscopic technique

Thymomas are rare and demonstrate indolent growth (1). Because all thymoma are considered malignant due to local invasion or dissemination, wide surgical excision, such as total thymectomy without biopsy is the treatment of choice for both diagnosis and therapy (1-3).