The severity of anterior mediastinal space of 3cm is related to the benign or malignant nature of the space-occupying lesion.
Anterior mediastinal space-occupying lesions are common teratomas and dermatoid cysts, thymoma, etc. It is generally believed that malignant lesions develop quickly, spread easily, and have a more serious condition.
1. Teratoma and dermatoid cyst: most teratomas are mature, and a few are immature teratomas. Mature teratoma is also known as “dermatoid cyst”, which is benign tumor and can be asymptomatic when it is small, but with the increase of the tumor body, it will compress the surrounding tissues and cause symptoms, and it may even be malignant or secondary infection, which will lead to serious consequences; immature teratoma is a malignant tumor, which has a high recurrence and metastasis rate, and it is more serious.
2. Thymoma: mostly benign, with intact envelope and clear margins, but clinically potentially malignant and easy to infiltrate surrounding tissues and organs. About 15% of patients with thymoma are combined with myasthenia gravis, and the condition is more critical.
Patients with anterior mediastinal occupancy of 3cm should be clearly diagnosed and actively treated under the guidance of specialized physicians.