• Journal of Korean Neurosurgical Society
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• v.59 no.2
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• pp.158-160
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• 2016

Ganglion cell tumors (GCT) are divided into two subtypes : gangliocytoma and ganglioglioma. Intramedullary gangliocytomas are extremely rare. A 20-year-old male patient with pain of neck, who also had a previously known neuroendocrine tumor of lung, was operated for mass found in the cervicomedullary junction with a presumptive diagnosis of metastases. Only partial resection could be performed. Pathological diagnosis had been reported as gangliocytoma. Only ten cases of intramedullary gangliocytoma have been reported in the literature. Although association with scoliosis and Von Recklinghausen;s disease were previously reported in the literature, no gangliocytoma case concomitant with endocrine tumor of lung have been published. Pathological study is the most important diagnostic method for gangliocytomas. Surgical excision is the primary treatment, but difficulty in total surgical tumor resection is the most important problem.

• Journal of Korean Neurosurgical Society
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• v.51 no.2
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• pp.105-108
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• 2012

Giant spinal schwannoma of the cauda equine involving many nerve roots is rare, and ossification is usually not observed in the schwannoma. A 21-year-old man presented with a 12-month history of urinary dysfunction and numbness below the buttocks. Plain radiography showed scalloping of the posterior surface of the vertebral bodies from L4 to the sacrum, and magnetic resonance imaging and computed tomography revealed a giant cauda equina tumor with dystrophic calcification. The tumor was completely removed, with intraoperative neurophysiologic monitoring. Histopathologic examination showed that the tumor was a schwannoma. The patient's postoperative course was uneventful, with urinary function and numbness gradually improving. Although a giant schwannoma accompanied by dystrophic calcification is extremely rare, such a tumor can be removed safely and completely by meticulous dissection and careful neuromonitoring of the cauda equina spinal nerves involved in the tumor.

• Archives of Craniofacial Surgery
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• v.21 no.4
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• pp.257-260
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• 2020

The concurrence of basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) in a single tumor is rarely encountered. We report a case of BCC and SCC in a single tumor in the anterior auricular area. A 70-year-old woman had been diagnosed with BCC by a punch biopsy performed at a dermatology clinic. We performed wide excision of the tumor with an ulcer in the anterior auricular area. Analysis of the biopsy specimen revealed the presence of both BCC and SCC in the tumor. This case illustrates that it is necessary to establish a precise diagnosis and formulate appropriate surgical and treatment plans considering the possibility that two carcinomas may coexist, although the possibility is low in patients with skin cancer.

• Journal of Korean Neurosurgical Society
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• v.60 no.3
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• pp.371-374
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• 2017

Ganglioneuroma (GN) is a rare benign tumor of neural crest origin usually found in the abdomen, but may occasionally present at uncommon sites including the cervical, lumbar, or sacral spine. However, GNs of thoracic spine are extremely rare. In this report, we describe a 12-year-old girl with giant GN in the thoracic spine, who underwent successful resection (T1-4 level) of the tumor. Histopathological examination confirmed the diagnosis. GN should be considered in the differential diagnosis of any paraspinal mass. A high index of suspicion and correlation of clinico-radiological findings is necessary in differentiating a large benign tumor from a malignant growth. Complete surgical excision is the treatment of choice; however tumor size and location need to be considered for the surgical approach (one-step or multiple surgeries). Close follow-up after surgery is mandatory.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.13 no.4
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• pp.436-443
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• 1991

A case of melanotic neuroectodermal tumor of infancy(MNTI) in 5 month old girl is presented with review of the literature. The review of literature indicated that there have been 189 reported cases of this lesion and there were 9 cases of malignant tumor for a rate of 4.8%. This rate of malignancy is very high in view of the fact that the tumor has been described as benign. And immunohistochemical study using avidin-biotin conjugate method demonstrated that this tumor had been originated from neural crest.

• Korean Journal of Head & Neck Oncology
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• v.7 no.1
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• pp.35-39
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• 1991

A 66 years old female who had a huge desmoid tumor on her left neck was treated by partial excision and postoperative irradiation. Detailed summary of this rare tumor are included with a review of the literature about treatment modality including irradiation. We suggest that local irradiation is one of the effective treatment tools in the management of desmoid tumor, especially, in the case of unresectable or postoperative residual tumors on the neck.

• Imaging Science in Dentistry
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• v.40 no.3
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• pp.149-153
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• 2010

Brown tumor is usually diagnosed at the terminal stage of hyperparathyroidism. Diagnosis of this tumor is confirmed by endocrinologic investigations along with clinical and radiographic examination. Radiographical differential diagnosis of this tumor includes central giant cell granuloma, aneurysmal bone cyst, metastatic tumor, multiple myeloma, and Paget disease. This report presents a rare case of multiple brown tumors occurring at the maxilla and mandible, which was initially misdiagnosed as central giant cell granuloma. Plain radiographs demonstrated multiple well-defined multilocular radiolucency. CT images showed soft tissue mass with low attenuated lesions, perforation of the lingual cortical plate, and a heterogeneous mass at the right thyroid lobe. These findings were consistent with parathyroid adenoma. The patient had hypercalcemia, hypophosphatemia, and elevated alkaline phosphatase level. Surgical excision of the tumor was performed. No recurrence was observed during a 28-month follow-up.

• Journal of Chest Surgery
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• v.18 no.3
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• pp.513-516
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• 1985

Hemangiopericytoma is a rare tumor of vascular origin, first described by Stout and Murray in 1942. It is characterized by proliferation of capillaries surrounded by pericytes. There is no characteristic clinical or radiological finding. Wide excision is the treatment of choice. A 21 year-old man was admitted with one year history of productive cough. On admission, chest film showed large lobulated mass and Right lower lobe atelectasis. Rt. pneumonectomy was performed and the tumor was confirmed as malignant hemangiopericytoma of the lung. Local recurrence didn`t occur until now.

• Journal of Chest Surgery
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• v.28 no.12
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• pp.1192-1196
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• 1995

As reported in the literature, extraskeletal mesenchymal chondrosarcoma is a rare malignant tumor of soft tissue, and it has a unique, distinctive histologic picture and poor prognosis.The common sites are the orbit, the cranial dura mater, the neck, the thigh, the leg, the chest wall, and the retroperitoneum. Radical excision of the tumor seems to be the primary treatment.We report experience with a very rare case of extraskeletal mesenchymal chondrosarcoma in the posterior mediastinum.

• The Journal of the Korean bone and joint tumor society
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• v.5 no.1
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• pp.63-69
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• 1999

Recently we experienced four cases of soft tissue Ewing sarcoma, developed in the calf muscles in two cases, and one case each in the foot and suprascapular region. We also found that the clinical course in all cases was rather rapid, because of local recurrence and metastatic lesions developing within a few months, followed by the patients' death in about 2 years after the primary tumor was excised. These cases were improperly treated initially as some kind of benign soft tissue tumor. The delay led to missed early accurate diagnosis and was thought to be one of the main causes for the rapid local recurrence and metastasis after tumor excision. The pulmonary metastasis was the most common cause of death.