• Journal of Chest Surgery
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• v.40 no.7 s.276
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• pp.523-525
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• 2007

Cystic lymphangioma is also called cystic hygroma, and it usually appears in the cervico-facial and axillary regions. It is usually apparent at birth and 90% of the cases appear at the end of second year. We have experienced a 64 year-old-male who had a large cystic lymphangioma in the left posterior chest wall. Surgical excision was done, and his postoperative course was uneventful. He has been well for two years postoperatively.

• Imaging Science in Dentistry
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• v.47 no.4
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• pp.281-284
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• 2017

Foreign body granulomas can develop after the injection of various cosmetic filling materials into the facial area to flatten wrinkles. Clinically, reactive lesions are easily mistaken for soft-tissue neoplasms or cysts. This report presents a case of foreign body granuloma in a 52-year-old female patient complaining of a painless swelling in the nasolabial region. Both clinical and histological features are described, underscoring the diagnostic role of magnetic resonance imaging findings.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.8
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• pp.3539-3542
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• 2015

Background: Retrospective data on 165 patients who presented with a parotid mass and underwent surgery in our clinics during 2000-2009 were examined. The obtained data (demographic data, surgical procedures, histopathological diagnoses) were compared to similar studies to make contributions to the literature. Materials and Methods: Patients were classified according to their histopathological diagnosis. Surgical procedures and patient follow-up were clarified. The results are presented as means and standard deviations. Results: Of the 165 masses, 134 (81.3%) were benign and 31 (18.7%) were malignant. Pleomorphic adenoma was the most common benign tumour (79 patients, 59%). Lymphoma and adenoid cystic carcinoma were equally common and were the most common malignant parotid gland tumours (both 6 patients, 19.3%). The most frequent surgical procedure was superficial parotidectomy (92 patients, 55.7%), and the most commonly encountered surgical complication was facial paralysis (12 patients, 7.2%). Conclusions: Our data are generally in line with the literature but lymphoma was more common than in most previous reports. Although the number of cases was low, the high incidence of parotid gland lymphoma was remarkable.

• Archives of Plastic Surgery
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• v.41 no.5
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• pp.584-587
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• 2014

In the present study, a fibular osteotomy guide based on a computer simulation was applied to a patient who had undergone mandibular segmental ostectomy due to oncological complications. This patient was a 68-year-old woman who presented to our department with a biopsy-proven squamous cell carcinoma on her left gingival area. This lesion had destroyed the cortical bony structure, and the patient showed attenuation of her soft tissue along the inferior alveolar nerve, indicating perineural spread of the tumor. Prior to surgery, a three-dimensional computed tomography scan of the facial and fibular bones was performed. We then created a virtual computer simulation of the mandibular segmental defect through which we segmented the fibular to reconstruct the proper angulation in the original mandible. Approximately 2-cm segments were created on the basis of this simulation and applied to the virtually simulated mandibular segmental defect. Thus, we obtained a virtual model of the ideal mandibular reconstruction for this patient with a fibular free flap. We could then use this computer simulation for the subsequent surgery and minimize the bony gaps between the multiple fibular bony segments.

• Journal of Veterinary Clinics
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• v.20 no.3
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• pp.399-402
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• 2003

A female unknown aged Yorkshire terrier, weighing 3.5 kg with nasal discharge, left facial swelling and severe inflammation was referred to Veterinary Medical Teaching Hospital, Seoul National University. Radiographic findings were lytic change and soft tissue swelling of left zygomatic process and increased radiopacity of nasal cavity. In computed tomography, turbinate bone destruction was observed as well as lytic change of left zygomatic process and left maxilla indicating aggressive lesion. Then 3-dimensional reconstruction was also performed. Biopsy of tissue mass revealed it as squamous cell carcinoma. For this patient, euthanasia was performed guarded prognosis. Generally, tumors of the nasal cavity in dogs account for approximately 1 % to 2% of all neoplasms. The prevalence of these tumors increased with age and exposure to the ultraviolet. About two thirds of all nasal tumors are malignant tumors such as squamous cell carcinoma and adenocarcinoma. As these tumors of nasal cavity are locally invasive, and external beam radiotherapy is the current treatment of choice. Unfortunately, diagnosis of these tumors often occurs late in the course of disease, resulting in a poor prognosis for outcome in many patients. It is considered that computed tomography could be used as an aid modality for the exact evaluation of extend and degree of bone lysis of nasal cavity and metastasis.

• The Korean Journal of Pain
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• v.6 no.1
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• pp.100-104
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• 1993

Malignant tumors of the paranasal sinuses are quite rare entity, with maxillary neoplasms accounting for less than 1 percent of all head and neck malignancies. When considering the paranasal sinuses alone, 77 percent of cancers arise in the maxillary sinuses. There is no situation more frustrating than the management of the patients with chronic facial pain due to cancer. The initial step in managing patients with cancer pain is the use of oncologic therapy in the form of radiotherapy, surgery, chemotherapy, alone or combined, either to effect a cure or decrease the size of the tumor and thus decrease or eliminate the pain. When oncologic therapy is ineffective in providing relief, the pain must be treated by one or more of the followings: Systemic analgesics and adjuvant drugs, psychologic techniques of analgesia, neurostimulating techniques, neuroablative surgical procedures, regional analgesia with local anesthetics or neurolytic blocks. An 82-year old patient had severe pain of the orbital and infraorbital region due to squamous cell carcinoma of the maxillary sinus. We successfully treated this patient with the percutaneous retrogasserian ethanol gangliolysis by a H$\ddot{a}$rtel approach, and the analgesia lasts until the death of the patient.

• Korean Journal of Head & Neck Oncology
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• v.37 no.2
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• pp.61-65
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• 2021

Epithelial-myoepithelial carcinoma is rare, low-grade malignant neoplasm that compromises approximately 1% of all salivary gland neoplasms. We reported a 68-year-old woman with epithelial-myoepithelial carcinoma in the parotid gland. We analyzed demographic and clinicopathological characteristics of salivary gland epithelial-myoepithelial carcinoma which has been reported in 33 cases in Korea from 1992 to 2017, and compared this result to overseas retrospective cohort studies. There was no significance in terms of mean age at diagnosis, the predominance of females, low frequency in regional lymph nodes, and distant metastasis between the two groups. However, T classification and AJCC stage at diagnosis in domestic cases are more advanced than those of overseas cases. Although the recurrence rate in domestic cases has been reported lower than that of overseas, further study may be needed considering that the follow-up period after treatment is short in domestic cases.

• Korean Journal of Radiology
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• v.24 no.9
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• pp.860-870
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• 2023

Objective: The intra-parotid facial nerve (FN) can be visualized using three-dimensional double-echo steady-state water-excitation sequence magnetic resonance imaging (3D-DESS-WE-MRI). However, the clinical impact of FN imaging using 3D-DESS-WE-MRI before parotidectomy has not yet been explored. We compared the clinical outcomes of parotidectomy in patients with and without preoperative 3D-DESS-WE-MRI. Materials and Methods: This prospective, non-randomized, single-institution study included 296 adult patients who underwent parotidectomy for parotid tumors, excluding superficial and mobile tumors. Preoperative evaluation with 3D-DESS-WE-MRI was performed in 122 patients, and not performed in 174 patients. FN visibility and tumor location relative to FN on 3D-DESS-WE-MRI were evaluated in 120 patients. Rates of FN palsy (FNP) and operation times were compared between patients with and without 3D-DESS-WE-MRI; propensity score matching (PSM) and inverse probability of treatment weighting (IPTW) were used to adjust for surgical and tumor factors. Results: The main trunk, temporofacial branch, and cervicofacial branch of the intra-parotid FN were identified using 3D-DESS-WE-MRI in approximately 97.5% (117/120), 44.2% (53/120), and 25.0% (30/120) of cases, respectively. The tumor location relative to FN, as assessed on magnetic resonance imaging, concurred with surgical findings in 90.8% (109/120) of cases. Rates of temporary and permanent FNP did not vary between patients with and without 3D-DESS-WE-MRI according to PSM (odds ratio, 2.29 [95% confidence interval {CI} 0.64-8.25] and 2.02 [95% CI: 0.32-12.90], respectively) and IPTW (odds ratio, 1.76 [95% CI: 0.19-16.75] and 1.94 [95% CI: 0.20-18.49], respectively). Conversely, operation time for surgical identification of FN was significantly shorter with 3D-DESS-WE-MRI (median, 25 vs. 35 min for PSM and 25 vs. 30 min for IPTW, P < 0.001). Conclusion: Preoperative FN imaging with 3D-DESS-WE-MRI facilitated anatomical identification of FN and its relationship to the tumor during parotidectomy. This modality reduced operation time for FN identification, but did not significantly affect postoperative FNP rates.

• The Journal of Advanced Prosthodontics
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• v.8 no.3
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• pp.229-234
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• 2016

PURPOSE. The purpose of this study was to investigate the demographic patterns of maxillofacial prosthetic treatment to identify the characteristics and geographic distribution of patients with maxillofacial prosthetics in the capital region of Korea. MATERIALS AND METHODS. This retrospective analytical multicenter study was performed by chart reviews. This study included patients who visited the department of prosthodontics at four university dental hospitals for maxillofacial prosthetic rehabilitation. Patients with facial and congenital defects or with insufficient medical data were excluded. The patients were classified into three categories based on the location of the defect. Patients' sex, age, and residential area were analyzed. Pearson's chi-square test with a significance level of 0.05 was used to analyze the variables. RESULTS. Among 540 patients with maxillofacial prosthetics, there were 284 (52.59%) male patients and 256 (47.41%) female patients. The number of the patients varied greatly by hospital. Most patients were older than 70, and the most common defect was a hard palate defect. Chi-square analysis did not identify any significant differences in sex, age, and distance to hospital for any defect group (P>.05). CONCLUSION. The results of this study indicated that there was imbalance in the distribution of patients with maxillofacial prosthetic among the hospitals in the capital region of Korea. Considerations on specialists and insurance policies for the improvement of maxillofacial prosthetics in Korea are required.

• Archives of Plastic Surgery
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• v.37 no.2
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• pp.153-160
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• 2010

Purpose: The prevalence of skin cancers and cutaneous premalignant lesions are increasing recently. It is necessary to treat cutaneous premalignant lesions, because these can progress to invasive skin cancers. We conducted a retrospective study to evaluate the usefulness of $CO_2$ laser resurfacing in skin tumor surgery. Methods: From 2005 to 2008, 14 patients with skin cancers, photodamaged skin and cutaneous premalignant lesions were treated with skin cancer excision, immediate reconstruction, and $CO_2$ facial laser resurfacing. Mean average follow-up period was 15.6 months (5 months - 36 months). Biopsy and clinical photograph were taken preoperatively, intraoperatively and through follow-up period to assess the effectiveness of laser resurfacing. Recurrence and side effects were evaluated through follow-up period. Results: Histologic examination shows the abolition of actinic atypia, regeneration of epidermis and normalization of cellular differentiation after laser resurfacing. Clinical photographs shows elimination of keratoses and spots, and the homogeneous, smoothening change of skin surface, indicating healthy and younger faces. All patients had remained free of skin cancers and premalignant lesions in laser-treated field through follow-up period. Conclusion: $CO_2$ laser resurfacing in skin tumor surgery can treat not only premalignant lesions but also subclinical lesions of photodamaged skin. Moreover it may be helpful in prophylaxis against skin cancers and premalignant lesions, providing rejuvenation and cosmetic improvement.