• Maxillofacial Plastic and Reconstructive Surgery
• /
• 제31권1호
• /
• pp.71-76
• /
• 2009

Benign myoepithelioma (BME) and malignant myoepithelioma (MME) of the salivary gland are very rare and its biologic behavior has not been clarified fully. Although, cases reports for BME and MME were increased in recent, their diagnostic criteria were not completely established. We describe herein a case of BME of the parotid gland and a case of MME of the palatal minor gland, respectively. Histologically, multinodular growth pattern, infiltration to adjacent tissues, and hyalinized and myxoid matrix were observed in MME, that were different histologic features compared with BME. Strong immunoreactivities for the S-100 protein and vimentin were detected in the tumor cells of BME and MME. In specimen of MME, moderately expressed p53 and strongly expressed p63 were detected. However, in specimen of BME, p53 was negatively and p63 was weakly expressed, respectively. In conclusion, the expression patterns of p53 and p63 as well as histologic aggressiveness might be used to diagnose the MME.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• 제28권5호
• /
• pp.390-394
• /
• 2002

Basal cell adenocarcinoma is an epithelial neoplasm which is cytologically and histomorphologically similar to basal cell adenoma but is different because of the infilitrative growth. This tumor, a rare salivary gland tumor newly classified as basal cell adenocarcinoma by the WHO in 1991, is infiltrative, locally destructive and tends to recur but metastasis is less common. The differential diagnosis includes basal cell adenoma, adenoid cystic carcinoma, and basaloid squamous carcinoma. Nearly 90 percent of these tumors occurr in the parotid gland and can be classified into low grade carcinomas with a relative good prognosis. Basal cell adenocarcinoma of minor salivary gland is very rare and has a less favorable clinical course compared with that of the major salivary glands. This is a case of basal cell adenocarcinoma occurring at the minor salivary gland of the soft palate. We treated this patient with block excision and adjunctive radiation therapy.

• 대한두경부종양학회지
• /
• 제19권1호
• /
• pp.63-66
• /
• 2003

Branchial cleft cysts typically are characterized as lateral swellings anterior to sternocleidomastoid muscle in upper third of the neck. However, cysts have been reported in unusual location such as the thymus, oral cavity, parotid gland, pancreas, and thyroid. Perithyroidal branchial cleft cysts are also rare and preoperative diagnosis is very difficult. Recently we have experienced a case of intrathyroidal branchial cleft cys and a case of perithyroidal branchial cleft cyst, which were diagnosed preoperatively as the parathyroid cyst. So, we report these two cases with review of the literatures.

• 대한두개안면성형외과학회지
• /
• 제12권1호
• /
• pp.37-42
• /
• 2011

Purpose: Cancer arising from the external auditory canal is a rare disease. A lesion that seems harmless in someway, can be lethal when inadequately excised, the tumor may infiltrate nerves, the parotid and auditory tissues before re-invading the skin. Wide resection of the lesion surrounding the structure and reconstruction with an adequate plan is crucial for the treatment of this disease. Methods: Two patients with external auditory canal cancer were treated with muscle flaps and skin grafts. Lateral temporal bone resection (LTBR) was performed for complete resection of the cancer. The defect cavity was obliterated with highly vascularized tissue using pedicled sternocleidomastoid muscle, and temporalis muscle individually, combined with full thickness skin graft for covering the skin defect of the ear. Results: Clear resection margin was obtained, and both patients showed disease free survival during the follow up. There was no complications of hematoma, infection, flap loss, or wound problem in both patients. Both patient received radiation therapy, there was no osteoradionecrosis or any other complication related to radiation therapy. Conclusion: Utilizing pedicled muscle flaps for managing defects after wide resection of the external auditory canal cancer is an effective method for managing this difficult disease.

• 대한기관식도과학회지
• /
• 제4권1호
• /
• pp.96-100
• /
• 1998

Lymphangiomas are congenital malformations of the lymphatic system. Cervicofacial lymphangioma represents 75% of all lymphangiomas. Surgical excision has been the treatment of choice, however the reported results have been unsatisfactory. Various sclerosants have been tried to treat lymphangiomas, with variable results and considerable side effects. Herein we report the results of treatment using intralesional picibanil for lymphangioma. Between January 1996 and January 1998, 16 patients with lymphangiomas, 10 boys and 6 girls, were treated with intralesional picibanil injections. All cases were treated as a primary therapy. Eight lymphagiomas were located in the neck, and 2 in the cheek, 2 in the parotid, 2 in the trunk, 1 in the oropharynx, 1 in the thigh. Dose and method of intralesional injection was similar to that reported by Ogita in 1987. Complete regression was observed in 10 cases and marked regression(> 75% size decrease) in 2 cases and moderate regression(75%-25% size decrease) in 2 cases and poor regression(< 25% size decrease) in 2 cases. No serious side effect was observed except fever lasting for 2-3 days. Intralesional injection of picibanil for lymphangiomas represents a safe, easy and effective way of treatment with high success rate. Picibanil injection can be used as a primary therapy for lymphangiomas.

• 대한의사협회지
• /
• 제61권12호
• /
• pp.715-723
• /
• 2018

Facial soft tissue injury due to trauma is common. Severe damage of soft tissue causes functional and cosmetic problems. In the initial evaluation of patients with facial trauma, airway maintenance and respiratory maintenance are the most important. The principles of treatment include adequate irrigation and debridement, primary closure, or secondary wound healing. Postoperative care such as taping, silicone gel sheeting, and sun screening is important to prevent scarring. The scalp and forehead are abundant in blood and can cause severe bleeding. The eyelid is very thin and has a multi-layered structure, requiring accurate suturing and reconstruction of the layers. It is advisable to determine the presence of hematoma in the ear and treat it. When the cheek area is damaged, it is necessary to identify and treat the damage of the parotid gland and the facial nerve branch. The lips should be sewn with the white roll of lip and vermillion.

• 임상이비인후과
• /
• 제29권2호
• /
• pp.254-258
• /
• 2018

The solitary fibrous tumor (SFT) is a mesenchymal neoplasm that is described as spindle-shaped tumor cells on a collagenous background originating from pleural tissues. Recently, extrapleural SFT has been reported in nearly all sites, including the sublingual gland, parotid gland, nasal cavity and paranasal sinuses. Complete surgical excision is primary treatment for SFT, but diagnosing SFT is not often made until immunohistochemical evaluation after surgical resection. We report that the patient, 45-year-old male, was considered as a case of inflammation polyp arising from left nasal cavity with initial biopsy, however, it has turned out to be SFT after surgical treatment.

• 대한두개안면성형외과학회지
• /
• 제20권1호
• /
• pp.71-74
• /
• 2019

Schwannoma is a benign tumor rarely found in the head and neck and much less commonly found in the intraparotid facial nerve. It is a slow-growing encapsulated tumor originating from the Schwann cells or axonal nerve sheath. It can occur anywhere along the course of the facial nerve. Patients may present with symptoms of facial palsy, but the most common presenting symptom is an asymptomatic swelling. Diagnosis is usually difficult before surgical removal and histopathological examination. We report a rare case of intraparotid facial nerve schwannoma in a 57-year-old female who had sustained a mass of the right preauricular area for 3 years. She reported no pain or facial muscle weakness. Enhanced computed tomography findings revealed the impression of pleomorphic adenoma. However, intraoperative gross findings were not characteristic of pleomorphic adenoma, and a frozen biopsy was performed resulting in the impression of a nerve sheath tumor. We performed an extracapsular surgical excision without parotidectomy. Permanent histopathology and immunohistochemistry reports diagnosed the mass as schwannoma. There were no complications including facial palsy after surgery. No recurrence was found at 6 months after surgery.

• Imaging Science in Dentistry
• /
• 제51권2호
• /
• pp.209-216
• /
• 2021

Sjögren syndrome is a chronic autoimmune inflammatory disease characterized by lymphocytic infiltration of exocrine glands, predominantly the parotid and lacrimal glands, thereby resulting in oral and ocular dryness. It has been reported to occur most frequently in women between 40 and 50 years of age. Sjögren syndrome has an insidious onset, is slowly progressive, and presents a wide range of clinical manifestations, leading to delays or challenges in the diagnosis. Early diagnosis of this condition is essential to prevent the associated complications that affect patients' quality of life. This report presents 3 cases of Sjögren syndrome in female patients aged between 40 and 75 years who presented with complaints of persistent dry mouth and burning sensation. The cases highlight the diagnostic value of 3-dimensional cone-beam computed tomographic sialography in the detection of salivary gland pathologies at an early stage.

• 대한두개안면성형외과학회지
• /
• 제25권4호
• /
• pp.201-204
• /
• 2024

Pleomorphic adenoma is a benign tumor that can occur in the salivary glands, most commonly in the parotid gland. While it primarily occurs in the major salivary glands, it can sometimes be found in the minor salivary glands. Within the minor salivary glands, it most often originates in the hard palate and soft palate, and less frequently in the upper lips. Due to its location in the minor salivary glands, most pleomorphic adenoma involve and protrude on the mucosa. A 61-year-old man presented with 1.5 cm exophytic mass on the skin of his upper lip. This mass was exophytic on the skin and did not involve or protrude into the inner lip mucosa. The mass was entirely excised, and a subsequent permanent biopsy diagnosed it as a pleomorphic adenoma. In such situations, it can be challenging to suspect pleomorphic adenoma during a physical examination, leading to potential diagnostic confusion. It might also be mistaken for an inclusion cyst or another type of mass, making it tempting to treat without verifying the pathological results.