Mature Cervical Teratoma Extending Into the Anterior Mediastinum of an Adult

Abstract

There have been few reports of mature cystic teratoma, also known as a dermoid cyst, in the head and neck. Cervical neck teratoma extending into the mediastinum is also relatively rare. Here, we report a mature teratoma found in a cervical tumor in a 21-year-old man. This is the first reported case of a mature cervical teratoma extending into the anterior mediastinum. A combination of frontal X-ray, ultrasonography, computed tomography, and magnetic resonance imaging indicated a large oval heterogeneous mass surrounding the thyroid gland and trachea, underneath the sternocleidomastoid and sternohyoid, which pressed on the left lobar thyroid and trachea and extended into the anterior mediastinum. Based on preoperative observation, a diagnosis of an embryonal benign tumor was made. Although rare, this case demonstrates that these tumors should be completely removed during workup of cervical tumors.

Cervical Cystic Teratoma: An Unusual Cause of Airway Obstruction in the Pediatric Population

“…As far as the site of involvement is concerned, the ovaries and testes are the two most common sites for the development of cystic teratoma. Rarely these tumors can also be present in extragonadal sites including the sacrococcygeal region, anterior mediastinum, retroperitoneal space, pineal body, and above the sella turcica [ 5 ]. Moreover, cervical cystic teratomas are seldom reported in the medical literature.…”

Mature Cystic Teratoma of the Suprasternal Fossa in an Adult: Report of Case

“…In all teratoma reports, the cervical teratomas are rare and often occur in the fetal neck [2]. In adulthood, the occurrence of neck teratoma is extremely rare, accounting for only 10.6% [3]. The suprasternal fossa, as the entrance of the thorax, is located at the junction of the neck and chest.…”