• Korean Journal of Bronchoesophagology
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• v.2 no.2
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• pp.280-284
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• 1996

Carotid body tumors are uncommon tumors of the head and neck Surgery is the primary treatment for the tumor. Large carotid body tumors frequently encircle the common, internal, and exernal carotid arteries, and extensive bleeding often complicates the resection, increasing the risk of carotid artery rupture and damange to major cranial nerves. Grafting should be used in high-risk patients. We have experienced a case of carotid body tumor which encircle the common, internal and external carotid arteries, treated with ligation of external carotid artery and grafting using Gortex between common carotid artery and internal carotid artery.

• Korean Journal of Head & Neck Oncology
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• v.16 no.2
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• pp.224-227
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• 2000

Neurilemmomas are benign nerve sheath tumors arising from peripheral Schwann cells. The tumor composed of Schwann cells and collagen fibers, can occur in any region of the body where there is a nerve that has a Schwann sheath. The incidence of the tumor in the head and neck is about 30% with many of these occurring on the vagus nerve. Neurilemmoma is characterized by solitary occurrence, with sharp demarcation and encapsulation. Multiple genesis is very rare. This article presents a rare case of multiple neurilemmomas located bilaterally in the cervical region.

• Korean Journal of Head & Neck Oncology
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• v.31 no.2
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• pp.39-42
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• 2015

Warthin's tumor is the second most common salivary gland benign tumor, typically occurring in the fifth to seventh decades of life which shows an indolent feature. It is usually found in the parotid gland but occasionally in extra-parotid locations such as peri-parotid lymph node. However, Report of solitary Warthin's tumor in cervical lymph node is unusual. We here report a case of 72-year-old male with simultaneous malignant melanoma on eyelid and cervical lymph node enlargement in cervical level II area thus mimicking malignancy metastasis. After excisional biopsy under the local anesthesia, pathology was reported as papillary cystadenoma lymphomatosum, which is a histologically pathognomic finding of Warthin's tumor. However, there was no suspicious tumorous lesion in major or minor salivary glands. This case suggests that Warthin's tumor should be considered as a possible pathology in solitary lymph node lesion of neck.

• Korean Journal of Head & Neck Oncology
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• v.31 no.2
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• pp.11-15
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• 2015

Background and Objectives: This study aimed to analyze the features of patients with papillary thyroid carcinoma (PTC) recurred as distant metastases (DM). Materials and Method: We retrospectively reviewed and analyzed clinical records of 63 patients who were treated for PTC recurred as DM between 2000 and 2006. Univariate and multivariate analyses of various clinical factors were performed. Results: Male patients were 12, and female patients were 51. The 5- and 10-year survival rates for PTC recurred as DM were 85% and 73%, respectively. Size of tumor, multiplicity of tumor, lateral neck node metastasis, and RAI ablation therapy with other treatments such as surgery were associated with survival rate (p < 0.005) in univariate analysis. The lateral neck node metastasis[p =0.039, hazard ratio=2.2(95% CI. 1.18~3.24)] and multiple organ DM[p =0.041, hazard ratio=2.18(95% CI. 1.03~2.89)] were related to the survival in multivariate analysis. Conclusion: PTC recurred as DM is uncommon (2.2%). The size of tumor, the multiplicity of tumor, lateral neck node metastasis and RAI ablation therapy with other treatments for DM were revealed as associated factors for the survival. Evaluation of DM should be considered in patients with PTC during long-term follow-up.

• Korean Journal of Head & Neck Oncology
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• v.31 no.2
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• pp.43-45
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• 2015

Angiomyolipoma is a benign tumor that is composed of adipose tissue, blood vessels and smooth muscle. The kidney is the most common location of this tumor. In the larynx, angiomyolipoma has been rarely reported in the literature. We describe the patient of 64-year-old male with an angiomyolipoma arising from the vallecula. The tumor had a smooth surface with numerous small vessels and showed heterogeneous contrast enhancement on CT. The tumor was not adhesive to surrounding tissue and was completely removed by laryngomicrosurgery with $CO_2$ laser. Microscopically, the tumor is composed of mature adipose tissue, tortuous thick walled blood vessels and thick bundles of smooth muscle.

• Korean Journal of Head & Neck Oncology
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• v.9 no.1
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• pp.42-48
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• 1993

A group of 49 patients with neurogenic tumor in head and neck except intracranial tumor & Von-recklinghausen's disease was treated at the Department of Surgery. Presbyterian Medical Center during 12 years from January, 1980 to December, 1991. Of the 49 cases, 24 cases were neurilemmoma, 23 cases neurofibroma and 2 cases malignant schwannoma. The lateral cervical region was the commonest location of the neurogenic tumors, 24 cases (49%) arose from posterior triangle of neck and 12 cases from anterior triangle of neck. The origin of nerve was identified in 28 cases(57%). Cervical plexus(10 cases) and brachial plexus(7 cases) were most commonly affected. The most common site of neurogenic tumors arose from cranial nerve was anterior cervical triangle.

• Korean Journal of Head & Neck Oncology
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• v.40 no.1
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• pp.43-47
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• 2024

Malignant peripheral nerve sheath tumor (MPNST) is an extremely rare sarcoma of soft tissue. It is locally invasive, frequently recurred and metastasizes distantly, therefore has a very poor prognosis. the most involved sites are human body and extremities, and MPNST occurs and involved very rarely in the parapharynx of neck. MPNST does not react to radiotherapy and chemotherapy, therefore complete surgical resection is the most important treatment. Since immunohistochemical staining is essential for the final diagnosis, it is common to be confirmed after surgery. We report a case of giant MPNST without symptom in the head and neck involving the right parapharynx with multiple distant metastases in a 74-year-old patient on a review of the literature.

• Korean Journal of Head & Neck Oncology
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• v.36 no.2
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• pp.37-40
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• 2020

Pleomorphic hyalinizing angiectatic tumor (PHAT) is a rare, low grade neoplasm which usually occurs in subcutaneous soft tissue. Histologically, it features ectatic blood filled vessels surrounded by hyalinized stroma and pleomorphic spindle cells. Clinically and histologically, PHAT could be misdiagnosed as such tumor as neurogenic tumor, malignant fibrous histiocytoma. About 100 cases of PHAT have been reported so far, and it is even rarer in head and neck area. We experienced a case of PHAT in 41-year-old male with several months of history of gradually enlarging neck mass which was surgically removed by wide excision.

• Korean Journal of Head & Neck Oncology
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• v.39 no.2
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• pp.71-74
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• 2023

Ewing sarcoma is a rare tumor in head and neck area. We demonstrate a rare case of sinonasal Ewing sarcoma initially suspected as olfactory neuroblastoma. After the surgery and immunohistochemical studies, it was accurately diagnosed as Ewing sarcoma. We would like to emphasize the possibility that Ewing sarcoma may originate from the head and neck area, and hence, it is important to use appropriate techniques for accurate diagnosis and treatment.

• Korean Journal of Head & Neck Oncology
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• v.28 no.1
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• pp.46-49
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• 2012

Primary tumors of the parapharyngeal space are rare and account for only 0.5% of head and neck neoplasm. About 80% of parapharyngeal tumors are benign and 20% are malignant. Parapharyngeal space is classified into the Prestyloid space and the Poststyloid space. The Poststyloid tumors are usually benign lesions such as neurogenic tumors, paragangliomas, vascular tumors, or aneurisms. The origins of prestyloid tumors are much more diverse pathology, the pleomorphic adenoma in parotid deep lobe is most common type. Several surgical approaches have been introduced for management of parapharyngeal tumor, such as transcervical, transparotid-transcervical and the transcervical-transmandibular approaches. This paper is aimed to present a large parapharyngeal space tumor removed via transoral approach. It is possible to remove easier by using microdebrider. The pathologic diagnosis was pleomorphic adenoma.