Surgery for posterior mediastinal dumbbell tumors: A case report
نویسندگان
چکیده
INTRODUCTION Mediastinal dumbbell tumors are rare, and special cases provide valuable knowledge to the existing literature. PRESENTATION OF CASE A 57-year-old woman was diagnosed with a recurrent dumbbell-shaped nerve sheath tumor with intrathoracic and intraspinal components. We attempted to resect the tumor via combined biport thoracoscopy and laminectomy with the patient in a prone position. However, copious bleeding prevented complete removal of the intraspinal component of the tumor. Pathological examination of the operative specimens showed a mixed hemangioma. DISCUSSION The first report on the use of triportal thoracoscopy for treatment of a posterior mediastinal dumbbell tumor with the patient in the prone position was published in 1995. However, this technique is not widely used. The technique used in our case is unique only in that biportal rather than triportal thoracoscopy was used to resect the intrathoracic component of the tumor. The differential diagnoses of posterior mediastinal dumbbell-shaped tumors include neurogenic tumors, meningiomas, and hemangiomas. Very rarely, cavernous and capillary hemangiomas also present as dumbbell-shaped lesions. To our knowledge, a mixed hemangioma presenting as a dumbbell-shaped lesion has not been previously reported. CONCLUSION The intrathoracic component of a posterior mediastinal dumbbell tumor can be resected by biportal thoracoscopy with the patient in a prone position, reducing the operative time. If the diagnosis of a dumbbell tumor is inconclusive, an endoscopic biopsy should be performed before removing the tumor.
منابع مشابه
A Large Intrathoracic Mass in a Patient with Neurofibromatosis-1: a case report
Abstracts: Dural ectasia is circumferential expansion or dilatation of the dural sac, and has been frequently reported in association with type 1 neurofibromatosis (NF1). It should be differentiated from posterior mediastinal tumors such as neurofibroma, neuroblastoma, and ganglioneuroma because NF-1 has a high risk of tumor formation. In the spinal deformities of NF-1 patients, despite the sco...
متن کاملEvaluation of 95 Cases with Mediastinal Tumors
Introduction:Mediastinum contains different vital structures that are located in the anterior and middle or posterior compartments. Various types of mediastinal masses or tumors can be seen in the mediastinum. Materials and Methods:This case series study was performed on 95 patients who had referred to Mashhad University of Medical Sciences between 1990 and 2010 were reviewed. The Inclusion cr...
متن کاملGiant dumbbell tumor of the posterior mediastinum Džinovski dumbbell tumor zadnjeg medijastinuma
Background. Giant dumbbell-shaped tumors are very rare and characterized by intraand extraspinal propagation of different dimensions. In thoracal localization, invasive growth can lead up to rib and vertebra erosion. Case report. We presented a 54-year-old woman with a giant dumbbell schwannoma in the posterior mediastinum. The tumor was removed by the posterior approach with hemilaminectomy an...
متن کاملThoracoscopic surgery combined with a supraclavicular approach for removing a cervico-mediastinal neurogenic tumor: a case report.
The neurogenic tumors in the posterior mediastinum sometimes extend into the vertebral canal, known as dumbbell tumors, but cases in which the neurogenic tumor extends to the cervical region are rare. A 19-year old female with a right-sided posterior mediastinal mass, without either Horner's syndrome or pain on the right upper extremity, was referred to our hospital. The chest computed tomograp...
متن کاملPreferred surgical approach for dumbbell-shaped tumors in the posterior mediastinum.
We present the case of a 67-year-old male smoker with a posterior mediastinal hemangioma. Radiological findings revealed a dumbbell-shaped tumor with a neuroforaminal extension in the right paravertebral space. Under the preoperative diagnosis of a neurogenic tumor, surgery was performed using a combined anterior and posterior approach. During the thoracotomy, the tumor was found to be a hemang...
متن کامل