Abstract
Teratomas have been reported to occur in multiple organ regions, and are less common in non-gonadal regions, such as the neck and chest, than in gonadal and midline regions of the body, such as ovaries and testis. Cases have been reported of a large teratoma of the anterior mediastinum extending to the neck, causing symptoms such as dyspnea, which can be quickly detected by Ultrasound, and patients can be quickly treated. In adults, primary teratoma at the suprasternal foss that not accumulate thyroid gland upward and not invade the mediastinum are rare, usually have no obvious clinical symptoms and are found in most patients by chance. In this literature, we report a rare case of mature cystic teratoma in the suprasternal fossa of a 33-year-old male. Preoperative ultrasonography showed a superior sternal fossa tumor with less calcification and more adipose tissue. The final pathologic diagnosis was mature cystic teratoma through open surgery of the suprasternal neck incision. The patient was followed up for 9 months and there was no recurrence. We believe that the suprasternal notch approach is a safe and effective method for the treatment of mature teratoma without protruding into the superior mediastinum.
Highlights
Cases have been reported of a large teratoma of the anterior mediastinum extending to the neck, causing symptoms such as dyspnea, which can be quickly detected by Ultrasound, and patients can be quickly treated
We report a rare case of mature cystic teratoma in the suprasternal fossa of a 33-year-old male
Mature teratoma is more common as a cystic mass, which is composed of well-differentiated adult tumors
Summary
Teratoma is a tumor with the potential of polydermal differentiation, which ori-. J. Most of the tumor tissues are mature and a few are immature [1]. It is usually found in the ovary and testes. The cervical teratomas are rare and often occur in the fetal neck [2]. The suprasternal fossa, as the entrance of the thorax, is located at the junction of the neck and chest. Due to the absence of obvious clinical symptoms and hidden locations, smaller suprasternal teratomas are rarely found. We first report a case of 33-year-old man with suprasternal fossa tumor, which was pathologically confirmed as a primary small and mature cystic teratoma in the suprasternal fossa after surgical resection
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