Primary liposarcomas of the mediastinum are extremely rare neoplasms, comprising less than 1% of all mediastinal tumors. These tumors occur most commonly in the lower extremities (75%) and less frequently in the retroperitoneum. We present a case involving a successful radical resection of a large myxoid liposarcoma and its recurrence, both located in the posterior mediastinum.

Among the many sites of ectopic thymoma development, the middle mediastinum is the rarest in the English language literature we found only two case reports. We present a case of 69-year-old woman with slow-growing, ectopic middle mediastinum thymoma of an very unusual histological type, neither classified in the Müller-Hermelink nor the World Health Organization (WHO) classification.

Bronchogenic cyst is a result of abnormal development   of the ventral foregut presents as a discrete mass. Most commonly, it is appeared in the middle mediastinum and rarely is seen in adults. We report a 35-year-old woman who was asymptomatic and incidentally was found with a mass in chest radiograph.  

Ultrasonogram revealed cystic lesion in the right upper chest with internal echoes. Barium swallow showed a mass lesion causing smooth indentation of the esophageal outline (Fig. 1). At surgery, a cyst was identified in the posterior mediastinum, which was para-esophageal in location extending into the superior mediastinum. After excision, clinical improvement was rapid and child is well 8 mont...

Mediastinal mature teratoma is the most common form of germ cell tumors, often located in the anterior mediastinum. A posterior mediastinum location has rarely been described. We report a case of a posterior mediastinal mature teratoma in a 37-year-old patient and a literature review, through which we describe the diagnostic and therapeutic difficulties inherent in this particular location of t...