• Korean Journal of Head & Neck Oncology
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• v.33 no.1
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• pp.15-19
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• 2017

Background/Objective: The survival and recurrence pattern of the patients with primary cancer of the external auditory canal was evaluated. Materials & Methods: Seventeen patients with primary cancer of the external auditory canal from 2002 to 2013 was analyzed retrospectively. Overall survival, recurrence free survival, local recurrence free survival and distant metastasis free survival was calculated by Kaplan-Meyer's method. Results: Five year overall survival rate, 5 year recurrence free survival rate, 5 year local recurrence free survival rate and 5 year distant metastasis free survival rate were 49.3% 54.9%, 64.7% and 69.6% respectively. The recurrence pattern is different to the pathologic type, squamous cell carcinoma or adenoid cystic carcinoma. The patients with squamous cell carcinoma showed local recurrence and the patients with adenoid cystic carcinoma showed distant metastasis mainly. Conclusion: Primary cancer of external auditory canal showed different clinical course depend on the pathologic diagnosis.

• Archives of Craniofacial Surgery
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• v.22 no.3
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• pp.157-160
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• 2021

Head and neck cutaneous metastasis of advanced gastric cancer is uncommon, and scalp metastasis is particularly rare. We present the case of a 60-year-old man who was diagnosed with cutaneous metastasis on the scalp originating from advanced gastric cancer. The patient was referred to the plastic surgery department for a scalp mass near the hairline. He had been diagnosed with advanced gastric cancer and undergone total gastrectomy and Roux esophagojejunostomy 3 years previously. The differential diagnosis for a single flesh-colored nodule on the scalp included benign tumors such as epidermal cyst or lipoma; therefore, the patient underwent excision and biopsy. In the operative field, the mass was found to be located in the frontalis muscle. The biopsy result showed that the mass was a metastatic lesion of advanced gastric cancer. Whole-body computed tomography revealed a gastric tumor with blood vessel infiltration, peritoneal carcinomatosis, liver metastasis, and multiple disseminated subcutaneous metastases. Although scalp metastasis originating from an internal organ is extremely rare, plastic surgeons should always consider a metastatic lesion in the differential diagnosis if a patient with a scalp lesion has a history of malignant cancer.

• International journal of thyroidology
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• v.11 no.2
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• pp.99-108
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• 2018

Most thyroid cancers are well-differentiated cancers and have a very good prognosis. About 10% of thyroid cancer, however, invades the surrounding tissues, causing local recurrence and distant metastasis, and eventually affecting survival rate. In locally advanced thyroid cancers, the invasion of trachea, larynx and esophagus, can be occurred by primary tumor and may also result in lymph nodes metastasis. Surgical resection is still mainstay for the treatment of locally advanced thyroid cancer. The main purpose of the surgical resection is to eliminate the cancer completely, therefore, it can cause many complications such as dysfunction of the larynx, trachea and esophagus. It can have a serious effect on the quality of life, therefore there is still controversy on the extent of the surgery. The authors compare and analyze the opinions which were already discussed in the literatures published so far. These will help to select the surgical method.

• Korean Journal of Head & Neck Oncology
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• v.3 no.1
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• pp.55-63
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• 1987

A retrospective investigation of 52 cases of carcinoma of the larynx, who underwent total laryngectomy $\bar{c}\;or\;\bar{s}$ neck dissection at Pusan National University Hospital from 1978 to 1985, was performed. The results obtained were as follows: 1) There were 32 glottic(62.7%), 18 supraglottic(35.3%) and 1 subglottic(2.0%) carcinoma. 2) In stage grouping, stage ill was the most(64.7%) and then stage II, stage IV, stage I in order. 3) Overall rate of cervical metastasis was 29.4%. In glottic carcinoma, 0% of $T_1,\;40%\;of\;T_2,\;18%\;of\;T_3\;and\;25%\;of\;T_4$. In supraglottic carcinoma, there was 0% of $T_1,\;29%\;of\;T_2,\;56%\;of\;T_3\;and\;50%\;of\;T_4$. 4) The incidence of postoperative complication was 31.4% and stomal stenosis was the most(13.7%) 5) There were 8 cases of local recurrence and 3 cases of distant metastasis(2 cases in lung, 1 case in esophagus) among 40 cases which were able to follow up. 6) 3 year estimated survival rate for glottic and supraglottic carcinoma were 73.3 % and 85.7% respectively.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.26 no.2
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• pp.133-136
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• 2015

Spindle epithelial tumor with thymus-like differentiation (SETTLE) is an extremely rare type of thyroid tumor, with spares reports on its clinical course. SETTLE is derived from branchial pouch or thymic remnants, and classified as a low grade, malignant neoplasm due to its indolent growth and tendency to develop delayed metastasis. Therefore, stringent initial workups and long-term follow-up are required to prevent misdiagnosis. We present a case of recurrent spindle epithelial tumor with thymus-like differentiation (SETTLE) in the glottis of 57 year-old male patient, who had a history of surgical excision for the SETTLE from the thyroid gland 5 years ago. Transoral CO2 laser surgery was performed to remove the glottic tumor and there was no evidence of local recurrence at 11 months postoperatively.

• Korean Journal of Head & Neck Oncology
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• v.32 no.2
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• pp.23-27
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• 2016

비인강암은 비인강상피에 발생한 암으로 경부전이 및 간, 폐, 뼈 등의 원격전이가 흔히 나타난다. 본 증례에서는 제 4기 병기를 가진 비인강암환자에서 항암 화학요법 및 방사선 치료 후 매우 드물게 후경부 및 액와 림프절 전이를 보인 환자를 보고하는 바이다. 진행된 병기를 보이는 비인강암 환자는 방사선 치료 후 피부전이가 종종 나타나는 현상이나 후경부 림프절 전이는 흔치 않다. 특히 액와 림프절 전이는 비인강암에서 거의 전이를 보이지 않으나 본 증례에서는 매우 드물게 액와 림프절 전이를 보여 보고하는 바이다.

• Imaging Science in Dentistry
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• v.38 no.4
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• pp.225-228
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• 2008

Rhabdomyosarcoma (RMS) is an aggressive and fast-growing malignant tumor. RMS predominantly arises in the head and neck of infancy and children. Metastasis is usually via the blood vessel. We report a case of a recurred RMS of the tongue base with the metastasis to multiple lymph nodes in a 37-year-old female. On the follow-up examination using advanced imaging modalities after surgical treatment of RMS, the lymph nodes should be carefully evaluated like in other malignancies, such as a carcinoma, showing frequent lymph node metastasis. (Korean J Oral Maxillofac Radiol 2008; 38 : 225-8)

• Korean Journal of Otorhinolaryngology-Head and Neck Surgery
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• v.55 no.3
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• pp.173-176
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• 2012

Oncocytic neoplasm of the head and neck region accounts for approximately 1% of all salivary gland tumors, but only 5% of oncocytic neoplasm is malignant. Oncocytic carcinoma arising in the submandibular gland is exceedingly rare. We encountered a sixty seven-year-old male patient who presented with multiple mass in the right neck. Fine needle aspiration biopsy revealed a salivary gland tumor of predominantly oncocytic form, and a differential diagnosis included oncocytic adenoma or mucoepidermoid carcinoma. A right submandibular gland resection and modified radical neck dissection were performed. Histologically, the tumor cells showed nuclear pleomorphism, and stromal invasion, which were compatible with oncocytic carcinoma. After surgery, the entire neck region was irradiated. Seventeen months after the initial surgery, multiple metastases to the bone and lung were detected from the incidental pathologic bone fracture of the right humerus; palliative chemotherapy was performed to resolve this. We report a case of oncocytic carcinoma in the submandibular gland with a review of literature.

• 대한두경부종양학회:학술대회논문집
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• 2007.05a
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• pp.73-73
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• 2007

• Korean Journal of Head & Neck Oncology
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• v.22 no.2
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• pp.159-162
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• 2006

Trichilemmal carcinoma is a rare malignant neoplasm of the hair follicle from the outer root of the hair follicle sheath. This tumor can be misleading, and a false diagnosis of a squamous cell carcinoma. We report a case of trichilemmal carcinoma with a review of literature. The patient presented with an exophytic well circumscribed nodular mass on the left auricle, which was detected 6 months ago. Histopathologically, the tumor consisted of atypical clear cells which contained abundant glycogen. The tumor cells shows lobular growth pattern with necrosis, foci of trichilemmal keratinization and peripheral pallisading. Total excision and repair with full-thickness skin graft was done with minimal surgical morbidity. The patient has been free of recurrence or metastasis for 8 months.