• Journal of the Korean Society of Radiology
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• v.81 no.6
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• pp.1466-1471
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• 2020

Intradural schwannoma accompanied with torsion is rare. Intradural lumbar schwannoma was found in a 63-year-old man presenting with right sacral pain radiating to the lower extremity. This mass showed minimal enhancement on MRI. The tumor's location changed each time on MRI and CT-myelography. The patient underwent surgical resection and the cauda equina, linked to this schwannoma, was severely twisted.

• Journal of Chest Surgery
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• v.39 no.11 s.268
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• pp.875-878
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• 2006

A 39-year-old man presented with a esophageal submucosal tumor on regular check up examination. Preoperative exams showed the typical submucosal tumor as leiomyoma and operative procedure was enucleation for complete resection. Postoperative pathologic diagnosis including histologic and immunohistochemical study was compatible with plexiform schwannoma. Plexiform schwannoma is one of the least common variant of schwannoma that typically shows a plexiform or multinodular pattern. To our knowledge, there is rare case report of plexiform schwannoma originating in the esophagus and we report ore case with related literature.

• Tuberculosis and Respiratory Diseases
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• v.65 no.5
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• pp.426-429
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• 2008

Neurogenic tumors are common in posterior mediastinal tumors and neurilemmoma represents approximately 40% of neurogenic tumors arising in the mediastinum. It is usually asymptomatic, and is generally diagnosed incidentally. In some cases, they presented with symptoms of nerve or airway compression. However, a solitary neurilemmoma, particularly not associated with von Recklinghausen disease, with spontaneous hemothorax is quite rare. We report a case of spontaneous massive hemothorax associated with a solitary neurilemmoma.

• Investigative Magnetic Resonance Imaging
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• v.13 no.2
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• pp.207-212
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• 2009

Schwannoma is a rare intramedullary tumor. There has been no reported case about interval aggravation on follow-up MR imaging. We report initial and follow-up MR findings of a thoracic intramedullary schwannoma with syringomyelia and edema in a patient without neurofibromatosis. Intramedullary schwannoma should be included for differential diagnosis of intramedullary tumor even though followup MR imaging shows interval increase in size of the tumor and extent of associated edema to mimic malignancy.

• Journal of Chest Surgery
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• v.37 no.11
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• pp.963-966
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• 2004

A rare case of schwannoma involving lower thoracic esophagus is presented. A 64-year-old male was seen with slowly progressing dysphagia for 2 years. Large sized submucosal tumor was found by endoscopy and chest CT. On surgery, tumor was very solid and tightly adherent to the adjacent tissue. Esophagectomy and esophagogastrostomy was done.

• Tuberculosis and Respiratory Diseases
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• v.65 no.4
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• pp.318-322
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• 2008

Neurilemmomas are benign nerve sheath tumors derived from Schwann cells that rarely occur in the chest wall. Neurilemmomas of the chest wall are usually solitary lesions that bulge toward the pleural cavity. Neurilemmomas are confirmed histologically based on the presence of Verocay bodies, Antoni A and Antoni B tissue patterns and S-100 protein. Bilateral neurilemmomas in the chest wall are extremely rare, as are those that grow in the subcutaneous tissue but not the pleural area. We report here a case of bilateral chest wall neurilemmomas in which the tumors bulged out to the skin and were palpable.

• Nuclear Medicine and Molecular Imaging
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• v.42 no.5
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• pp.422-424
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• 2008

• Tuberculosis and Respiratory Diseases
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• v.62 no.2
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• pp.129-133
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• 2007

Neurilemmomas are benign tumors that originate from Schwann cells. These tumors rarely occur in the trachea or bronchus. Although small peripheral lesions cause no symptoms, they usually cause dyspnea, cough, wheeze, and atelectasis. We encountered two cases of endobronchial neurilemmoma, and reviewed 10 cases previously reported in Korea in order to clarify the characteristics of this disease, and to determine the appropriate treatment. The median age of the 12 patients reviewed were 36.5 (range 16-75). Cough and dyspnea were the most common initial symptoms (40%), and two cases had no symptoms. Regarding the diagnostic methods, bronchoscopic biopsy was found to be inadequate for diagnosis in two cases. A review of the cases revealed the following teatments: bronchoscopic removal in two cases, surgery in six cases, and combined bronchoscopic removal and surgery in one case.

• Korean Journal of Head & Neck Oncology
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• v.25 no.2
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• pp.143-145
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• 2009

신경초종은 전신의 말이집신경 중 어디에서나 발생할 수 있는 말초신경집 양성종양이다. 이 종양이 비강에서 발생하는 것은 흔하지 않다. 저자들은 뇌경색으로 입원하고 있던 55세 여자환자에서 다량의 비출혈을 동반한 비강 신경집종 1예를 보고하는 바이다. 부비강 컴퓨터단층촬영사진상 좌측비강과 비인두를 채우는 비균질한 저음영의 거대 종양이 관찰되었고 뼈의 재형성 역시 관찰되었다. 내시경 생검을 시행하였다. 병리검사상, 난원형의 경계가 좋은 병변이 편평상피로 화생된 비강 점막 아래에서 관찰되었고, 종양은 물결모양의 핵을 가진 방추세포로 이루어져 있었고, 방추형의 핵들이 밀집하게 모여있는 Antoni A 부분과 세포의 수가 적으며 허술하게 뭉쳐있는 Antoni B 부분으로 이루어져 있었으며 S-100 단백질 면역염색에 양성이었다. 비강의 신경초종으로 진단하였다. 따라서, 흔하지 않게 접하게 되는 비강 신경초종의 임상양상, 감별진단, 및 치료에 대해 알아보고자 한다.

• Korean Journal of Bronchoesophagology
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• v.14 no.2
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• pp.70-72
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• 2008

Nerogenic tumor of various histologic types may arise in the posterior mediastinum. Mediastinal schwannoma is a frequent paraspinal neurogenic tumor, but malignant mediastinal schwannoma is rare tumor which is derived from Schwann cells. Although there are some reports dealing with approach for screening patients with symptoms suggesting malignancy and the imaging criteria for distinguishing malignant from benign schwannoma but the results are not clearly defined. We present a case of hugh mediastinal schwannoma which was taken for malignancy in imaging studies because of its invasiveness.