• Korean Journal of Veterinary Service
• /
• v.29 no.4
• /
• pp.507-511
• /
• 2006

Acanthomatous epulis is a malignant form of gingival tumor. This is a case of epulis affecting a four-year old, intact, female Maltese dog raised as indoor pet in Iksan city. Clinical examination showed an enlarged palpable mass along the rostral maxillary gingiva. Section of the excised mass showed epithelial overgrowth and expansion from the basal portions through the tissue stroma. Post-surgical radio-graph showed displacement of the first and second maxillary incisors. Histochemical staining showed strongly positive reaction to epithelial marker cytokeratin and moderately positive reaction to connective tissue marker vimentin. This case was diagnosed as a form of maxillary gingival acanthomatous epulis. Routine clinical oral examination is suggested.

• Imaging Science in Dentistry
• /
• v.45 no.1
• /
• pp.55-60
• /
• 2015

Multiple myeloma is a clonal neoplastic proliferation of terminally differentiated B-lymphocytes involving the skeletal system in a multifocal fashion. Its oral manifestations are less common in the maxilla than in the mandible due to the lower amount of hemopoietic bone marrow in the maxilla. We report the case of a 50-year-old man who presented with a mass in the left maxillary alveolar region with tooth mobility. The mass had become enlarged after the teeth were extracted 15 days previously. Radiographs demonstrated multiple punched-out radiolucent lesions in the skull and pelvic region. Computed tomography images showed a soft tissue density mass in the left maxilla, eroding the floor and walls of the maxillary sinus. Although several analytical techniques were used to characterize the lesion, it was finally confirmed as multiple myeloma through immunohistochemistry.

• Imaging Science in Dentistry
• /
• v.31 no.2
• /
• pp.121-127
• /
• 2001

Inflammatory pseudotumor was originally described in the lung, but recently has been recognized to occur in various sites. A 56-year-old female was referred to our department with a painless swelling of the right midfacial area since 3 months ago. Clinical examination showed non-specific intraoral findings, but asymmetric facial appearance and numbness of the right midfacial area. Plain radiographs and CT images showed aggressive destruction and irregular thickening of the right maxillary sinus wall, increased antral opacification, and destruction of the zygomatic arch. A relatively well-defined soft tissue mass occupied the right maxillary sinus, nasal cavity, zygoma, and infraorbital region. The soft tissue mass showed mild enhancement on CT. Radiographically, this lesion presented a rapidly enlarging mass demonstrating aggressive behavior, mimicking a malignant tumor. Histopathologic examinations showed plasma cells and inflammatory cells in variable fibrotic tissues and demonstrated positive reactivity for vimentin. No malignent changes could be found.

• Korean Journal of Head & Neck Oncology
• /
• v.39 no.2
• /
• pp.65-69
• /
• 2023

We report a unique case of hemangioma of the nasal cavity in von Hippel-Lindau (VHL) syndrome. A 26-year-old female with VHL syndrome who had previously undergone surgery for pancreatic and adrenal mass presented with a 4-month history of left-sided nasal obstruction. The patient had an expansile mass lesion in the left nasal cavity and an imaging test demonstrated the mass in the left maxillary sinus extending to the nasal cavity. The tumor was removed with an endoscopic prelacrimal recess approach considering the possibility of not only a benign tumor such as hemangioma but also a malignant tumor of the maxillary sinus and histopathologic examination confirmed cavernous hemangioma. This case is the rarely reported manifestation of the paranasal sinus in VHL disease.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• v.47 no.6
• /
• pp.471-475
• /
• 2021

Solitary plasmacytoma (SP) is an uncommon form of plasma cell neoplasm occurring intraosseously or in soft tissue and presents as a single mass of monoclonal plasma cells. SP in the maxillary sinus is rare and can be misdiagnosed as other maxillary sinus tumors. The essential examinations in patients with the initial diagnosis of plasmacytoma are bone marrow biopsy, serum and urine electrophoresis, and kappa/lambda ratio (κ:λ ratio) to rule out multiple myeloma (MM). Herein, a rare case of SP in the maxillary sinus treated by surgery and localized radiation is reported. At the 10-year follow-up examination, local recurrence or disseminated development of MM were not evident.

• Imaging Science in Dentistry
• /
• v.40 no.4
• /
• pp.187-189
• /
• 2010

Aspergilloma of the paranasal sinus is a non-invasive form of aspergillosis, most often in the maxillary sinus. This case presents an 86-year-old female with aspergilloma of the left maxillary sinus. The patient's chief complaint was intermittent pain on the left maxillary first premolar area. A radiopacification of the left maxillary sinus was observed on the panoramic radiograph. Cone-beam computed tomography revealed complete radiopacification of the left maxillary sinus and scattered multiple radiopaque mass inside the lesion. Biopsy was performed under local anesthesia. On microscopic examination, numerous fungal hyphae, which branch at acute angle, were observed. The diagnosis was made as an aspergilloma based on the histopatholgic examination.

• Archives of Plastic Surgery
• /
• v.34 no.4
• /
• pp.501-503
• /
• 2007

Purpose: The authors report unusual one case of a patient presenting with maxillary sinus mucocele who had underwent Lefort I procedure 7 years ago. Methods: Case report and literature review Results: A 25 year old man came to us with fullness, pain and nasal obstruction on his left cheek area. He had a history of multiple operations due to cleft lip and palate since birth. Two jaw surgery was performed for correcting class III malocclusion 7 years ago. Computed tomography showed haziness, and fluid filled cystic mass on left maxillary sinus. Nasoendoscopy revealed the bulging of inferior turbinate and mucosa coincided in medial wall of maxillary sinus. Antrostomy with Caldwell-Luc approach was performed. Mucin contaning brownish exudate was leaked out. Severe inflammation of maxillary inner wall and exposure of 2 screws fixed previously were noticed. The curettage and marsupialization were accomplished. The symptoms of patient were improved after that procedure. Conclusion: Maxillary sinus mucocele is related with Lefort I procedure and it may occur even long after that procedure.

• Journal of Korean Dental Science
• /
• v.15 no.1
• /
• pp.68-74
• /
• 2022

Organized hematoma of maxillary sinus is a rare pathologically benign mass in which pressure in the hematoma increases as it undergoes a process of organization, causing the deformation of the surrounding tissue, mimicking malignancies. The midfacial degloving approach can be used when extensive exposure is required in the treatment of lesions or traumas in the midfacial area with intranasal and intraoral incisions. We report a surgical excision case of organized hematoma of maxillary sinus using midfacial degloving approach without major complications and recurrence after one-year follow up.

• Journal of Korean Dental Science
• /
• v.11 no.2
• /
• pp.86-91
• /
• 2018

Ameloblastomaa are odontogenic benign tumors with epithelial origin, which are characterized by slow, aggressive, and invasive growth. Most ameloblastomas occur in the mandible, and their prevalence in the maxilla is low. A 27-year-old male visited our clinic with a chief complaint of the left side nasal airway obstruction. Three-dimensional computed tomography showed left maxillary sinus filled with a mass. Except for the perforated maxillary left edentulous area, no invaded or destructed bone was noted. The tumor was excised via Le Fort I osteotomy. The main mass was then sent for biopsy and it revealed acanthomatous ameloblastoma. The lesion in the left maxillary sinus reached the ethmoidal sinus through the nasal cavity but did not invade the orbit and skull base. The tumor was accessed through a Le Fort I downfracture in consideration of the growth pattern and range of invasion. The operation site healed without aesthetic appearances and functional impairments. However, further long-term clinical observation is necessary in the future for the recurrence of ameloblastoma. Conservative surgical treatment could be the first choice considering fast recovery after surgery and the patient's life quality.

• The korean journal of orthodontics
• /
• v.23 no.1 s.40
• /
• pp.123-136
• /
• 1993

The purpose of this report is to present the successful improvement of occlusal relationship and facial esthetics in class II division 1 malocclusion with severe labioversion of upper anterior teeth and severe overjet, and in class II malocclusion with infraversion of bilateral maxillary canines by MEAW mechanics, which enables us to get effective distal on mass movement of maxillary dentition, with upper second molar extraction. After treatment, there were natural contact points at canine and premolar regions, normal occlusal relation-ship and treatment results, satisfied the gnathologic concept, in this 2 cases. Compared with the routine treatment with premolar extraction, the treatment time and patients' discomfort were reduced. And the MEAW mechanics, which enables us to get effective distal on mass movement of maxillary dentition, resulted in reduction of the treatment time and getting the good treatment results. Consequently, the majot concerns in orthodontic treatment are appropriate diagnosis and treatment plan, so, the application of second molar extraction with appropriate case analysis and diagnosis is very helpful to orthodontic treatment.