• Korean Journal of Head & Neck Oncology
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• v.29 no.1
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• pp.14-17
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• 2013

Giant cell reparative granuloma(GCRG) is a non-neoplastic rapidly expanding and locally destructive tumor that occurs almost exclusively within the mandible and maxilla. A 58-year-old man, complained of a mass on the left infra-auricular area starting 2 months ago. The radiologic finding suggests a mass that originate from mandible, pathology diagnosed the lesion as a giant cell reparative granuloma. The tumor was surgically excised without complications. We report the case with a review of literature.

• Korean Journal of Head & Neck Oncology
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• v.9 no.2
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• pp.221-226
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• 1993

Hamangiopericytoma, first described by Stout & Murray in 1942, is a rare vascular tumor composed of spindle-shaped or rounded cells proliferating around endothelial lined capillaries. These proliferating cells were belived to arise from the pericytes of Zimmerman. Histologically, this tumor demonstrates great variability and clinical course cannot be predicted from the histological appearance. Head and Neck hemangiopericytoma appears to have a lower grade malignancy with frequent local recurrency and metastasis, therefore, aggressive surgical therapy should be the treatment of choice. We experienced a case of hemangiopericytoma occurred in the right skull base at submastoideal and suboccipital area presenting as neck mass in upper occipital triangle in a 42 years old female patient and we report it with a review of literatures.

• Korean Journal of Head & Neck Oncology
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• v.20 no.2
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• pp.198-201
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• 2004

Neuroendocrine carcinomas are rare neoplasms of the hypopharynx. Neuroendocrine neoplasms are divided into four main types : carcinoid, atypical carcinoid, small cell carcinoma and paraganglioma. The diagnosis is primarily based on light microscopy and should be confirmed by immunohistochemical investigation. Small cell neuroendocrine carcinoma of the hypopharynx is extremely uncommon tumor and surgical results for this tumor have been disappointing. Chemotherapy and radiotherapy currently appear the most effective forms of therapy. We report our case of small cell neuroendocrine carcinoma of the hypopharynx with the brief review of literatures.

• Korean Journal of Head & Neck Oncology
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• v.3 no.1
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• pp.5-13
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• 1987

Cancer of the head and neck is an uncommon disease accounting for 5 % of all cancers. In an anatomic area so readily visible and palpable for examination without special and expensive diagnositic tools, it is unfortunate that many patients still present with advanced diseases. Since the prognosis is so intimately related to stage of disease, it is very important to detect the earliest stage of cancer with a complete head and neck examination. In the evaluation of cancer at any anatomic site, the description of the extent of the lesion is important. Not only does proper staging of the tumor lead to make decision of the most appropriate treatment, it also serves as a guide for the results of treatment. Proper staging demands a careful clinical assesment of the extent of the cancer. The current staging system for head and neck cancer uses the TNM system devised by American Joint Committee for Cancer Staging and End Result Reporting. T represent the primary tumor, N, regional nodal metastases, and M, distant metastases. The detection, diagnosis, and appropriate treatment of eary cancer will result in improved survival.

• Korean Journal of Head & Neck Oncology
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• v.28 no.1
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• pp.12-15
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• 2012

Carcinosarcoma of the parotid gland is extremely uncommon and is known to be an aggressive malignant mixed tumor in which carcinomatous and sarcomatous elements coexist and metastasize together. We report a case of recurrent parotid gland carcinosarcoma that showed squamous cell carcinoma and chondrosarcoma in a 58-year-old woman.

• Korean Journal of Head & Neck Oncology
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• v.21 no.1
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• pp.45-47
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• 2005

Leiomyosarcoma of the larynx is very rare, and rarely been described in reference to the head and neck region. This tumor occurs mainly in the uterus, the gastrointestinal track, and the retroperitoneum. There have been 24 previously reported cases of this tumor involving the larynx in the literature. Histologic diagnosis remains extremely difficult. A case of leiomyosarcoma of the larynx, treated by total laryngectomy, is reported. We discuss the clinical presentation, diagnosis, and treatment of leiomyosarcoma with a review of the literature.

• Korean Journal of Head & Neck Oncology
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• v.34 no.2
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• pp.35-38
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• 2018

Mucinous adenocarcinoma (MAC) is a rare malignant neoplasm that occasionally occurs in the large intestine (colon), followed by the pancreas, ovary, lung, prostate, and breast. It is characterized by large amounts of extracellular epithelial mucin that contains tumor cell nests. We herein present a unique case of MAC originating from minor salivary gland, the second to be reported in literature in South Korea. We report a case of MAC in the tongue considered to be developed from minor salivary gland with a review of literature.

• Korean Journal of Head & Neck Oncology
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• v.34 no.2
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• pp.65-67
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• 2018

Pleomorphic adenoma (PA) is a benign tumor which usually originates from major and minor salivary glands. This tumor arising outside submandibular gland (SMG) is extremely rare. To author's knowledge, only four cases have been reported so far in English literature. Its pathogenesis is still unclear, but it can be explained by embryologic theory of major salivary gland. A 68-year-old man with an incidental mass on left upper lateral neck visited to our clinic. The radiologic findings showed well-margined round mass outside left SMG. The excisional biopsy revealed a pleomorphic adenoma. We report the rare and unique case with a brief literature review.

• Korean Journal of Head & Neck Oncology
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• v.26 no.1
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• pp.37-40
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• 2010

Ectopic hamartomatous thymoma is a rare benign tumor of the lower neck occurring in the male adult predominantly. The origin of this tumor has been debated, but it is now believed to arise from remnants of the cervical sinus of His from early development. They are composed of epithelial, adipocytic, and spindle cells in variable amounts. Recognition of ectopic harmatomatous thymoma is important and needs to be differentiated from high-grade sarcomas such as synovial sarcoma or glandular malignant peripheral nerve sheath tumor. We here report on a case of ectopic hamartomatous thymoma arising in the left lateral neck of 33-year-old male patient.

• Korean Journal of Head & Neck Oncology
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• v.20 no.1
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• pp.33-36
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• 2004

Papillary carcinoma of thyroid is the most common thyroid carcinoma carrying better prognosis than the other thyroid carcinoma. Among the variants in the papillary thyroid carcinoma, the tall cell variant and diffuse sclerosing variants have more aggressive behavior than the classic papillary carcinoma. Recently, a new variant of papillary carcinoma has been reported which was named warthin-like tumor of the thyroid because of its close histologic resemblance to a tumor encountered in the salivary gland, carrying favorable prognosis. Since then, in English literature, a few cases have been reported, but in Korea have not been reported yet. We report a case of warthin-like tumor of the thyroid. A 38 year-old woman who had neck mass, was administered for thyroid surgery due to suspicious thyroid cytology. Right total thyroidectomy and left subtotal thyroidectomy with central compartment node dissection was performed. Histologic diagnosis was made as a Warthin-like tumor of the thyroid.